{"title":"1998 - 2006 GM LS Tune Files","description":"","products":[{"product_id":"1998-2006-silverado-sierra-chopacabra-cam-performance-tune-hp-tuners","title":"1998-2006 Chevy Silverado (4.8, 5.3, 6.0L ETC |  Chopacabra Cam, and Others  Pre-Written Tune Files (HP Tuners Required)","description":"\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003clink href=\"https:\/\/fonts.googleapis.com\" rel=\"preconnect\"\u003e \u003clink rel=\"stylesheet\" href=\"https:\/\/fonts.googleapis.com\/css2?family=Barlow+Condensed:wght@700;900\u0026amp;family=Barlow:wght@400;500;600;700\u0026amp;display=swap\"\u003e\u003c\/p\u003e\n\u003cstyle\u003e\n#jrj-9806-silverado,\n#jrj-9806-silverado * {\n  box-sizing: border-box;\n}\n\n#jrj-9806-silverado {\n  --o:#FF5A00;\n  --o2:#ff7a1a;\n  --y:#FFD000;\n  --p:#16191F;\n  --p2:#1C2029;\n  --bd:rgba(255,255,255,.09);\n  --m:#8B94A3;\n  --t:#E8EDF2;\n  --blue:#00E5FF;\n  --purple:#9333EA;\n\n  font-family:'Barlow',sans-serif;\n  background:\n    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font-size:clamp(76px,13vw,175px);\n  line-height:.84;\n  letter-spacing:.04em;\n  color:rgba(255,255,255,.028);\n  transform:skewX(-8deg);\n  pointer-events:none;\n}\n\n.jrj-tune-eyebrow {\n  position:relative;\n  display:inline-flex;\n  align-items:center;\n  gap:8px;\n  padding:8px 18px;\n  background:rgba(0,229,255,.12);\n  border:1px solid rgba(0,229,255,.28);\n  border-radius:999px;\n  font-family:'Barlow Condensed',sans-serif;\n  font-size:12px;\n  font-weight:700;\n  letter-spacing:1.5px;\n  text-transform:uppercase;\n  color:var(--blue);\n  margin-bottom:20px;\n}\n\n.jrj-tune-eyebrow:before {\n  content:'';\n  width:7px;\n  height:7px;\n  border-radius:50%;\n  background:var(--blue);\n}\n\n.jrj-tune-title {\n  position:relative;\n  font-family:'Barlow Condensed',sans-serif;\n  font-weight:900;\n  font-size:clamp(44px,7vw,82px);\n  text-transform:uppercase;\n  color:#fff;\n  line-height:.92;\n  letter-spacing:-.5px;\n  margin:0 0 16px;\n  max-width:980px;\n}\n\n.jrj-tune-title 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top:8px;\n  font-family:'Barlow Condensed',sans-serif;\n  font-weight:900;\n  font-size:clamp(52px,9vw,120px);\n  line-height:.84;\n  letter-spacing:.08em;\n  color:rgba(255,255,255,.028);\n  transform:skewX(-8deg);\n  pointer-events:none;\n}\n\n.jrj-mini-inner {\n  position:relative;\n  z-index:1;\n}\n\n.jrj-mini-eye {\n  display:inline-flex;\n  align-items:center;\n  gap:8px;\n  padding:7px 16px;\n  background:rgba(255,90,0,.12);\n  border:1px solid rgba(255,90,0,.22);\n  border-radius:999px;\n  font-family:'Barlow Condensed',sans-serif;\n  font-size:12px;\n  font-weight:700;\n  letter-spacing:1.2px;\n  text-transform:uppercase;\n  color:var(--o);\n  margin-bottom:14px;\n}\n\n.jrj-mini-grid {\n  display:grid;\n  grid-template-columns:repeat(3,1fr);\n  gap:12px;\n  margin-top:20px;\n}\n\n.jrj-mini-card {\n  background:\n    linear-gradient(180deg,rgba(255,255,255,.03),rgba(255,255,255,.01)),\n    var(--p2);\n  border:1px solid rgba(255,255,255,.08);\n  border-radius:14px;\n  padding:15px 12px;\n  font-family:'Barlow Condensed',sans-serif;\n  font-size:15px;\n  font-weight:800;\n  letter-spacing:.45px;\n  text-transform:uppercase;\n  color:#B8C0CC;\n  text-align:center;\n  transition:.18s;\n}\n\n.jrj-mini-card:hover {\n  border-color:rgba(0,229,255,.45);\n  color:#fff;\n  background:rgba(0,229,255,.08);\n  transform:translateY(-2px);\n}\n\n.jrj-mini-cta {\n  margin-top:22px;\n  display:flex;\n  gap:12px;\n  flex-wrap:wrap;\n}\n\n.jrj-mini-btn {\n  flex:1;\n  min-height:54px;\n  border-radius:14px;\n  display:inline-flex;\n  align-items:center;\n  justify-content:center;\n  gap:10px;\n  font-family:'Barlow',sans-serif;\n  font-weight:800;\n  text-decoration:none !important;\n  font-size:15px;\n  letter-spacing:.4px;\n  transition:.18s;\n  padding:0 20px;\n  white-space:nowrap;\n}\n\n.jrj-mini-btn-primary {\n  background:linear-gradient(135deg,#ff7a1a 0%,#ff5a00 100%);\n  color:#fff !important;\n  border:1px solid rgba(255,255,255,.08);\n  box-shadow:0 12px 30px rgba(255,90,0,.22),inset 0 1px 0 rgba(255,255,255,.18);\n}\n\n.jrj-mini-btn-secondary {\n  background:rgba(255,255,255,.06);\n  color:#fff !important;\n  border:1px solid rgba(255,255,255,.12);\n}\n\n.jrj-mini-btn:hover {\n  transform:translateY(-2px);\n  text-decoration:none !important;\n}\n\n@media(max-width:760px) {\n  #jrj-9806-silverado {\n    padding:30px 14px 46px;\n  }\n\n  .jrj-tune-hero,\n  .jrj-tune-card,\n  .jrj-warning,\n  .jrj-mini-builder {\n    padding:22px;\n    border-radius:20px;\n  }\n\n  .jrj-tune-grid {\n    grid-template-columns:1fr;\n  }\n\n  .jrj-warning,\n  .jrj-tune-card.full {\n    grid-column:auto;\n  }\n\n  .jrj-mini-grid {\n    grid-template-columns:1fr 1fr;\n  }\n\n  .jrj-mini-cta {\n    flex-direction:column;\n  }\n\n  .jrj-mini-btn {\n    width:100%;\n  }\n}\n\n@media(max-width:480px) {\n  .jrj-mini-grid {\n    grid-template-columns:1fr;\n  }\n}\n\u003c\/style\u003e\n\u003csection id=\"jrj-9806-silverado\"\u003e\n\u003cdiv class=\"jrj-tune-wrap\"\u003e\n\u003cdiv class=\"jrj-tune-hero\"\u003e\n\u003cdiv class=\"jrj-tune-eyebrow\"\u003ePre-Written Tune File - 1998-2006 GM Trucks\u003c\/div\u003e\n\u003ch2 class=\"jrj-tune-title\"\u003e1998-2006 Silverado \/ Sierra \u003cspan\u003eLS Cam Tune File\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp class=\"jrj-tune-lead\"\u003eThis tune file is built for \u003cstrong class=\"jrj-highlight\"\u003e1998-2006 GM LS truck and SUV platforms\u003c\/strong\u003e using the 4.8L, 5.3L, or 6.0L engine family. \u003cbr\u003e\u003cbr\u003eIf you have a \u003cstrong\u003eBTR Truck Norris, Texas Speed Chopacabra, or similar LS truck cam\u003c\/strong\u003e in one of these trucks or SUVs, this tune will work for you. Send your factory read file and full mod list, and we will build the calibration around your exact setup. \u003cbr\u003e\u003cbr\u003eThis is not a random pulled file. Your tune is built around your \u003cstrong\u003efactory read file, operating system, engine size, transmission, cam setup, and full modification list\u003c\/strong\u003e. Most setups take \u003cstrong\u003e3-5 revisions\u003c\/strong\u003e, and we finish the tune instead of leaving you stuck after one file.\u003c\/p\u003e\n\u003cdiv class=\"jrj-tune-tags\"\u003e\n\u003cspan class=\"jrj-tune-tag blue\"\u003e1998-2006 GM Trucks\u003c\/span\u003e \u003cspan class=\"jrj-tune-tag blue\"\u003e4.8L \/ 5.3L \/ 6.0L\u003c\/span\u003e \u003cspan class=\"jrj-tune-tag orange\"\u003eTruck Norris \/ Chopacabra\u003c\/span\u003e \u003cspan class=\"jrj-tune-tag yellow\"\u003e3-5 Revisions Included\u003c\/span\u003e \u003cspan class=\"jrj-tune-tag\"\u003eHP Tuners\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"jrj-tune-grid\"\u003e\n\u003cdiv class=\"jrj-tune-card jrj-feature-clean full\"\u003e\n\u003ch3\u003e\u003cspan class=\"jrj-highlight\"\u003eBuilt for 1998-2006 GM LS Truck Cam Setups\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003eThese Gen III GM trucks respond great to a good camshaft, but the tune matters. A cammed 4.8L, 5.3L, or 6.0L truck needs the airflow, idle, fueling, spark, and transmission behavior corrected so it starts clean, idles right, drives smooth, and does not fight you at every stoplight.\u003c\/p\u003e\n\u003cul class=\"jrj-tune-list\"\u003e\n\u003cli\u003e\u003cstrong\u003eBuilt for 1998-2006 Silverado, Sierra, Tahoe, Yukon, Suburban, Avalanche, Escalade, and Hummer H2 platforms\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eDesigned for BTR Truck Norris, Texas Speed Chopacabra, or similar LS truck cams\u003c\/li\u003e\n\u003cli\u003eSupports common bolt-ons like headers, cold air intake, exhaust, and intake manifold upgrades\u003c\/li\u003e\n\u003cli\u003eBuilt from your actual factory read file, not a one-size-fits-all upload\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3-5 revisions included\u003c\/strong\u003e as needed to finish the calibration\u003c\/li\u003e\n\u003cli\u003eRequires HP Tuners hardware and credits for flashing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"jrj-tune-card\"\u003e\n\u003ch3\u003eCam Compatibility\u003c\/h3\u003e\n\u003cul class=\"jrj-tune-list\"\u003e\n\u003cli\u003e\u003cstrong\u003eBTR Truck Norris\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eTexas Speed Chopacabra\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSimilar LS truck camshafts\u003c\/strong\u003e with cam specs or full build details provided\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"jrj-tune-card\"\u003e\n\u003ch3\u003eWhat This Tune Covers\u003c\/h3\u003e\n\u003cul class=\"jrj-tune-list\"\u003e\n\u003cli\u003eStartup, idle, airflow, fueling, spark, and drivability calibration\u003c\/li\u003e\n\u003cli\u003eCammed truck idle control for cleaner startup and less stalling\u003c\/li\u003e\n\u003cli\u003eThrottle response and part-throttle drivability\u003c\/li\u003e\n\u003cli\u003eTransmission tuning support where applicable\u003c\/li\u003e\n\u003cli\u003eCommon bolt-ons including headers, intake, exhaust, and manifold swaps\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3-5 revisions included\u003c\/strong\u003e because real tuning takes what it takes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"jrj-tune-card full\"\u003e\n\u003ch3\u003eCompatible GM Trucks And SUVs\u003c\/h3\u003e\n\u003cp\u003eThese vehicles share the 1998-2006 GM truck\/SUV LS platform family when equipped with supported 4.8L, 5.3L, or 6.0L engine combinations.\u003c\/p\u003e\n\u003cul class=\"jrj-tune-list\"\u003e\n\u003cli\u003eChevrolet Silverado 1500\u003c\/li\u003e\n\u003cli\u003eGMC Sierra 1500\u003c\/li\u003e\n\u003cli\u003eChevrolet Silverado 2500 \/ 3500 gas LS applications\u003c\/li\u003e\n\u003cli\u003eGMC Sierra 2500 \/ 3500 gas LS applications\u003c\/li\u003e\n\u003cli\u003eChevrolet Tahoe\u003c\/li\u003e\n\u003cli\u003eGMC Yukon\u003c\/li\u003e\n\u003cli\u003eGMC Yukon XL\u003c\/li\u003e\n\u003cli\u003eChevrolet Suburban 1500 \/ 2500\u003c\/li\u003e\n\u003cli\u003eChevrolet Avalanche\u003c\/li\u003e\n\u003cli\u003eCadillac Escalade\u003c\/li\u003e\n\u003cli\u003eCadillac Escalade ESV\u003c\/li\u003e\n\u003cli\u003eCadillac Escalade EXT\u003c\/li\u003e\n\u003cli\u003eHummer H2\u003c\/li\u003e\n\u003cli\u003e2006 Chevrolet TrailBlazer SS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"jrj-tune-card\"\u003e\n\u003ch3\u003eEngine Coverage\u003c\/h3\u003e\n\u003cul class=\"jrj-tune-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003e4.8L LR4\u003c\/strong\u003e Gen III LS truck engine\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5.3L LM7 \/ L59\u003c\/strong\u003e Gen III LS truck engines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e6.0L LQ4 \/ LQ9\u003c\/strong\u003e Gen III LS truck and SUV engines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e6.0L LS2\u003c\/strong\u003e TrailBlazer SS support where applicable\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"jrj-tune-card\"\u003e\n\u003ch3\u003eWhat We Need From You\u003c\/h3\u003e\n\u003cul class=\"jrj-tune-list\"\u003e\n\u003cli\u003eEmail your HP Tuners factory read file to \u003ca href=\"mailto:Tunes@jrjonesracing.com\"\u003eTunes@JRJonesRacing.com\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eInclude your order number\u003c\/li\u003e\n\u003cli\u003eInclude year, make, model, engine size, and transmission\u003c\/li\u003e\n\u003cli\u003eList your cam, headers, intake, injectors, converter, gear ratio, tire size, and exhaust\u003c\/li\u003e\n\u003cli\u003eSend your cam card or cam specs if available\u003c\/li\u003e\n\u003cli\u003eTell us any current issues: stalling, surging, rich idle, lean codes, shift problems, etc.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"jrj-tune-card\"\u003e\n\u003ch3\u003eGood For\u003c\/h3\u003e\n\u003cul class=\"jrj-tune-list\"\u003e\n\u003cli\u003e1998-2006 GM LS truck and SUV cam swaps\u003c\/li\u003e\n\u003cli\u003eSilverado and Sierra 4.8L \/ 5.3L \/ 6.0L builds\u003c\/li\u003e\n\u003cli\u003eTahoe, Yukon, Suburban, Avalanche, Escalade, and Hummer H2 builds\u003c\/li\u003e\n\u003cli\u003eBTR Truck Norris cam setups\u003c\/li\u003e\n\u003cli\u003eTexas Speed Chopacabra cam setups\u003c\/li\u003e\n\u003cli\u003eSimilar LS truck cam combinations\u003c\/li\u003e\n\u003cli\u003eHeaders, intake, exhaust, and street truck builds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"jrj-tune-card\"\u003e\n\u003ch3\u003eNot For\u003c\/h3\u003e\n\u003cul class=\"jrj-tune-list\"\u003e\n\u003cli\u003e2007+ GM trucks\u003c\/li\u003e\n\u003cli\u003eGen V LT engines\u003c\/li\u003e\n\u003cli\u003eDiesel trucks\u003c\/li\u003e\n\u003cli\u003eVehicles with mechanical problems\u003c\/li\u003e\n\u003cli\u003eBoosted or nitrous setups unless custom details are provided\u003c\/li\u003e\n\u003cli\u003eCustomers unable to read and flash their own file\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"jrj-warning\"\u003e\n\u003ch3\u003ePerformance \u0026amp; Build Responsibility Notice\u003c\/h3\u003e\n\u003cp\u003eThis is a performance calibration designed for modified GM LS trucks and SUVs running a camshaft and supporting parts.\u003c\/p\u003e\n\u003cp\u003eYou are responsible for making sure your build quality is up to par before flashing or running this tune. Your engine, valvetrain, fuel system, drivetrain, wiring, sensors, injectors, exhaust, and all supporting parts must be correctly installed, mechanically sound, and capable of handling increased performance.\u003c\/p\u003e\n\u003cp\u003ePoor installation, worn parts, incorrect valve spring setup, wrong pushrod length, weak fuel supply, vacuum leaks, exhaust leaks, bad sensors, or unsafe mechanical condition can cause drivability issues or engine damage that no tune can fix.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eJ.R. Jones Automotive \u0026amp; Performance is not liable\u003c\/strong\u003e for engine failure, drivetrain damage, PCM\/ECU damage, or any issue caused by poor build quality, improper installation, unsafe flashing practices, incorrect customer-supplied information, or misuse of this tune.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"jrj-warning\"\u003e\n\u003ch3\u003eFlashing Safety Notice\u003c\/h3\u003e\n\u003cp\u003eAlways flash using a hard-wired USB connection. Do not flash over weak connections, unstable power, or while the vehicle battery is low.\u003c\/p\u003e\n\u003cp\u003eUse a battery charger or maintainer during the write process. Do not interrupt the flash once writing has started.\u003c\/p\u003e\n\u003cp\u003eCustomer is responsible for having the proper tuning hardware, software, licensing, and stable equipment needed to read and flash the vehicle.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"jrj-mini-builder\"\u003e\n\u003cdiv class=\"jrj-mini-inner\"\u003e\n\u003cdiv class=\"jrj-mini-eye\"\u003eBuild Your Exact Tune\u003c\/div\u003e\n\u003ch3\u003eNeed Help Matching Your Truck?\u003c\/h3\u003e\n\u003cp\u003eIf your Silverado, Sierra, Tahoe, Yukon, Suburban, Avalanche, Escalade, Hummer H2, or TrailBlazer SS has injectors, converter changes, gear\/tire changes, boost, nitrous, or anything beyond a normal Truck Norris \/ Chopacabra style cam setup, use the Build Your Tune page so we can match the calibration to your exact vehicle.\u003c\/p\u003e\n\u003cdiv class=\"jrj-mini-grid\"\u003e\n\u003cdiv class=\"jrj-mini-card\"\u003eSilverado\u003c\/div\u003e\n\u003cdiv class=\"jrj-mini-card\"\u003eSierra\u003c\/div\u003e\n\u003cdiv class=\"jrj-mini-card\"\u003eTahoe\u003c\/div\u003e\n\u003cdiv class=\"jrj-mini-card\"\u003eYukon\u003c\/div\u003e\n\u003cdiv class=\"jrj-mini-card\"\u003eSuburban\u003c\/div\u003e\n\u003cdiv class=\"jrj-mini-card\"\u003eAvalanche\u003c\/div\u003e\n\u003cdiv class=\"jrj-mini-card\"\u003eEscalade\u003c\/div\u003e\n\u003cdiv class=\"jrj-mini-card\"\u003eHummer H2\u003c\/div\u003e\n\u003cdiv class=\"jrj-mini-card\"\u003eTrailBlazer SS\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"jrj-mini-cta\"\u003e\n\u003ca class=\"jrj-mini-btn jrj-mini-btn-primary\" href=\"\/pages\/build-your-tune\"\u003eBuild Your Tune -\u0026gt;\u003c\/a\u003e \u003ca class=\"jrj-mini-btn jrj-mini-btn-secondary\" href=\"sms:+19102315505\"\u003eText Jason\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003cp\u003e```\u003c\/p\u003e","brand":"Cape Fear Motors","offers":[{"title":"BTR Truck Norris Cam Tune File","offer_id":42641660575811,"sku":"9906CHOP-1","price":249.99,"currency_code":"USD","in_stock":true},{"title":"Texas Speed Chopacabra Cam Tune File","offer_id":42641660608579,"sku":"9906CHOP-2","price":249.99,"currency_code":"USD","in_stock":true},{"title":"W\/ Long Tube Headers","offer_id":43148711985219,"sku":null,"price":269.99,"currency_code":"USD","in_stock":true},{"title":"W\/ TQ Converter","offer_id":43171388784707,"sku":null,"price":269.99,"currency_code":"USD","in_stock":true},{"title":"W\/ Long Tube and TQ Converter","offer_id":43171388817475,"sku":null,"price":279.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0659\/1964\/7811\/files\/98-06_Truck_Family.png?v=1777011256"},{"product_id":"stage-3-ls-cam-tune-file","title":"1998–2013 GM LS Stage 3 Cam Tune File | 4.8 5.3 5.7 6.0 6.2L | 450WHP Performance Tune (HP Tuners \/ EFI Live Required)","description":"\u003cp\u003e\u003clink rel=\"preconnect\" href=\"https:\/\/fonts.googleapis.com\"\u003e \u003clink href=\"https:\/\/fonts.googleapis.com\/css2?family=Barlow+Condensed:wght@700;900\u0026amp;family=Barlow:wght@400;500;600;700\u0026amp;display=swap\" rel=\"stylesheet\"\u003e\u003c\/p\u003e\n\u003cstyle\u003e\n#jrj-sloppy-stage3-tune,\n#jrj-sloppy-stage3-tune * {\n  box-sizing: border-box;\n}\n\n#jrj-sloppy-stage3-tune {\n  --o:#FF5A00;\n  --o2:#ff7a1a;\n  --y:#FFD000;\n  --p:#16191F;\n  --p2:#1C2029;\n  --bd:rgba(255,255,255,.09);\n  --m:#8B94A3;\n  --t:#E8EDF2;\n  --blue:#00E5FF;\n  --purple:#9333EA;\n\n  font-family:'Barlow',sans-serif;\n  background:\n    radial-gradient(circle at 8% 0%, rgba(147,51,234,.12), transparent 25%),\n    radial-gradient(circle at 100% 16%, rgba(0,229,255,.08), transparent 18%),\n    linear-gradient(180deg,#090909 0%,#0d1117 34%,#090b0f 100%);\n  color:var(--t);\n  line-height:1.65;\n  padding:48px 18px 60px;\n}\n\n#jrj-sloppy-stage3-tune a {\n  color:var(--blue);\n  text-decoration:none;\n}\n\n#jrj-sloppy-stage3-tune a:hover {\n  text-decoration:underline;\n}\n\n.jrj-tune-wrap {\n  max-width:1180px;\n  margin:0 auto;\n}\n\n.jrj-tune-hero {\n  position:relative;\n  overflow:hidden;\n  background:\n    linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.01)),\n    var(--p);\n  border:1px solid var(--bd);\n  border-radius:26px;\n  padding:44px 38px;\n  box-shadow:0 24px 60px rgba(0,0,0,.34);\n  margin-bottom:22px;\n}\n\n.jrj-tune-hero:before {\n  content:'450HP';\n  position:absolute;\n  right:-12px;\n  top:10px;\n  font-family:'Barlow Condensed',sans-serif;\n  font-weight:900;\n  font-size:clamp(76px,13vw,175px);\n  line-height:.84;\n  letter-spacing:.06em;\n  color:rgba(255,255,255,.028);\n  transform:skewX(-8deg);\n  pointer-events:none;\n}\n\n.jrj-tune-eyebrow {\n  position:relative;\n  display:inline-flex;\n  align-items:center;\n  gap:8px;\n  padding:8px 18px;\n  background:rgba(0,229,255,.12);\n  border:1px solid rgba(0,229,255,.28);\n  border-radius:999px;\n  font-family:'Barlow Condensed',sans-serif;\n  font-size:12px;\n  font-weight:700;\n  letter-spacing:1.5px;\n  text-transform:uppercase;\n  color:var(--blue);\n  margin-bottom:20px;\n}\n\n.jrj-tune-eyebrow:before {\n  content:'';\n  width:7px;\n  height:7px;\n  border-radius:50%;\n  background:var(--blue);\n}\n\n.jrj-tune-title {\n  position:relative;\n  font-family:'Barlow Condensed',sans-serif;\n  font-weight:900;\n  font-size:clamp(44px,7vw,82px);\n  text-transform:uppercase;\n  color:#fff;\n  line-height:.92;\n  letter-spacing:-.5px;\n  margin:0 0 16px;\n  max-width:980px;\n}\n\n.jrj-tune-title span {\n  color:var(--blue);\n}\n\n.jrj-tune-lead {\n  position:relative;\n  color:var(--m);\n  font-size:17px;\n  max-width:920px;\n  margin:0 0 22px;\n  line-height:1.75;\n}\n\n.jrj-tune-lead strong,\n.jrj-tune-card strong,\n.jrj-warning strong,\n.jrj-mini-builder strong {\n  color:#fff;\n}\n\n.jrj-highlight {\n  color:var(--y) !important;\n  font-weight:900;\n}\n\n.jrj-tune-tags {\n  position:relative;\n  display:flex;\n  flex-wrap:wrap;\n  gap:8px;\n}\n\n.jrj-tune-tag {\n  display:inline-flex;\n  padding:7px 12px;\n  border-radius:8px;\n  font-family:'Barlow Condensed',sans-serif;\n  font-size:13px;\n  font-weight:800;\n  letter-spacing:.55px;\n  text-transform:uppercase;\n  color:#fff;\n  background:rgba(255,255,255,.07);\n  border:1px solid rgba(255,255,255,.1);\n}\n\n.jrj-tune-tag.orange {\n  color:var(--o);\n  background:rgba(255,90,0,.13);\n  border-color:rgba(255,90,0,.28);\n}\n\n.jrj-tune-tag.yellow {\n  color:var(--y);\n  background:rgba(255,208,0,.11);\n  border-color:rgba(255,208,0,.24);\n}\n\n.jrj-tune-tag.blue {\n  color:var(--blue);\n  background:rgba(0,229,255,.10);\n  border-color:rgba(0,229,255,.24);\n}\n\n.jrj-tune-grid {\n  display:grid;\n  grid-template-columns:1fr 1fr;\n  gap:18px;\n  margin-top:18px;\n}\n\n.jrj-tune-card {\n  background:\n    linear-gradient(180deg,rgba(255,255,255,.035),rgba(255,255,255,.012)),\n    var(--p);\n  border:1px solid var(--bd);\n  border-radius:20px;\n  padding:26px;\n  box-shadow:0 18px 44px rgba(0,0,0,.24);\n}\n\n.jrj-tune-card.full {\n  grid-column:1 \/ -1;\n}\n\n.jrj-tune-card h3,\n.jrj-mini-builder h3 {\n  font-family:'Barlow Condensed',sans-serif;\n  font-weight:900;\n  font-size:30px;\n  line-height:1;\n  text-transform:uppercase;\n  color:#fff;\n  margin:0 0 16px;\n}\n\n.jrj-tune-card p,\n.jrj-mini-builder p {\n  color:var(--m);\n  font-size:16px;\n  margin:0 0 14px;\n  line-height:1.7;\n}\n\n.jrj-tune-list {\n  list-style:none;\n  display:grid;\n  gap:10px;\n  padding:0;\n  margin:0;\n}\n\n.jrj-tune-list li {\n  position:relative;\n  color:#B8C0CC;\n  font-size:15px;\n  line-height:1.55;\n  padding:11px 12px 11px 34px;\n  background:rgba(255,255,255,.035);\n  border:1px solid rgba(255,255,255,.06);\n  border-radius:11px;\n}\n\n.jrj-tune-list li:before {\n  content:'✓';\n  position:absolute;\n  left:13px;\n  top:10px;\n  color:var(--blue);\n  font-weight:900;\n}\n\n.jrj-feature-clean {\n  background:\n    linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.01)),\n    var(--p);\n  border:1px solid rgba(255,255,255,.12);\n  position:relative;\n}\n\n.jrj-feature-clean:before {\n  content:'';\n  position:absolute;\n  top:0;\n  left:0;\n  width:100%;\n  height:3px;\n  background:linear-gradient(90deg,var(--blue),var(--purple),var(--o));\n  border-top-left-radius:20px;\n  border-top-right-radius:20px;\n}\n\n.jrj-video-box {\n  grid-column:1 \/ -1;\n  background:#000;\n  border:1px solid rgba(255,255,255,.10);\n  border-radius:20px;\n  overflow:hidden;\n  box-shadow:0 18px 44px rgba(0,0,0,.28);\n}\n\n.jrj-video-box iframe {\n  width:100%;\n  aspect-ratio:16\/9;\n  display:block;\n  border:0;\n}\n\n.jrj-warning {\n  grid-column:1 \/ -1;\n  background:\n    linear-gradient(135deg,rgba(255,90,0,.13),rgba(255,208,0,.05)),\n    var(--p);\n  border:1px solid rgba(255,90,0,.28);\n  border-left:4px solid var(--o);\n  border-radius:20px;\n  padding:26px;\n  box-shadow:0 18px 44px rgba(0,0,0,.22);\n}\n\n.jrj-warning h3 {\n  font-family:'Barlow Condensed',sans-serif;\n  font-weight:900;\n  font-size:30px;\n  line-height:1;\n  text-transform:uppercase;\n  color:var(--o);\n  margin:0 0 16px;\n}\n\n.jrj-warning p {\n  color:#B8C0CC;\n  font-size:16px;\n  margin:0 0 14px;\n  line-height:1.7;\n}\n\n.jrj-warning p:last-child {\n  margin-bottom:0;\n}\n\n.jrj-note {\n  margin-top:18px;\n  padding:18px 20px;\n  border-radius:16px;\n  background:rgba(0,229,255,.07);\n  border:1px solid rgba(0,229,255,.22);\n  color:var(--m);\n  font-size:15px;\n}\n\n\/* MINI BUILDER BLOCK *\/\n.jrj-mini-builder {\n  margin-top:22px;\n  background:\n    radial-gradient(circle at top right,rgba(0,229,255,.07),transparent 28%),\n    linear-gradient(180deg,rgba(255,255,255,.035),rgba(255,255,255,.012)),\n    var(--p);\n  border:1px solid rgba(255,255,255,.08);\n  border-radius:22px;\n  padding:28px;\n  box-shadow:0 18px 44px rgba(0,0,0,.24);\n  position:relative;\n  overflow:hidden;\n}\n\n.jrj-mini-builder:before {\n  content:'CUSTOM TUNE';\n  position:absolute;\n  right:-8px;\n  top:8px;\n  font-family:'Barlow Condensed',sans-serif;\n  font-weight:900;\n  font-size:clamp(52px,9vw,120px);\n  line-height:.84;\n  letter-spacing:.08em;\n  color:rgba(255,255,255,.028);\n  transform:skewX(-8deg);\n  pointer-events:none;\n}\n\n.jrj-mini-inner {\n  position:relative;\n  z-index:1;\n}\n\n.jrj-mini-eye {\n  display:inline-flex;\n  align-items:center;\n  gap:8px;\n  padding:7px 16px;\n  background:rgba(255,90,0,.12);\n  border:1px solid rgba(255,90,0,.22);\n  border-radius:999px;\n  font-family:'Barlow Condensed',sans-serif;\n  font-size:12px;\n  font-weight:700;\n  letter-spacing:1.2px;\n  text-transform:uppercase;\n  color:var(--o);\n  margin-bottom:14px;\n}\n\n.jrj-mini-grid {\n  display:grid;\n  grid-template-columns:repeat(3,1fr);\n  gap:12px;\n  margin-top:20px;\n}\n\n.jrj-mini-card {\n  background:\n    linear-gradient(180deg,rgba(255,255,255,.03),rgba(255,255,255,.01)),\n    var(--p2);\n  border:1px solid rgba(255,255,255,.08);\n  border-radius:14px;\n  padding:15px 12px;\n  font-family:'Barlow Condensed',sans-serif;\n  font-size:15px;\n  font-weight:800;\n  letter-spacing:.45px;\n  text-transform:uppercase;\n  color:#B8C0CC;\n  text-align:center;\n  transition:.18s;\n}\n\n.jrj-mini-card:hover {\n  border-color:rgba(0,229,255,.45);\n  color:#fff;\n  background:rgba(0,229,255,.08);\n  transform:translateY(-2px);\n}\n\n.jrj-mini-cta {\n  margin-top:22px;\n  display:flex;\n  gap:12px;\n  flex-wrap:wrap;\n}\n\n.jrj-mini-btn {\n  flex:1;\n  min-height:54px;\n  border-radius:14px;\n  display:inline-flex;\n  align-items:center;\n  justify-content:center;\n  gap:10px;\n  font-family:'Barlow',sans-serif;\n  font-weight:800;\n  text-decoration:none !important;\n  font-size:15px;\n  letter-spacing:.4px;\n  transition:.18s;\n  padding:0 20px;\n  white-space:nowrap;\n}\n\n.jrj-mini-btn-primary {\n  background:linear-gradient(135deg,#ff7a1a 0%,#ff5a00 100%);\n  color:#fff !important;\n  border:1px solid rgba(255,255,255,.08);\n  box-shadow:0 12px 30px rgba(255,90,0,.22),inset 0 1px 0 rgba(255,255,255,.18);\n}\n\n.jrj-mini-btn-secondary {\n  background:rgba(255,255,255,.03);\n  color:#fff !important;\n  border:1px solid rgba(255,255,255,.12);\n}\n\n.jrj-mini-btn:hover {\n  transform:translateY(-2px);\n  text-decoration:none !important;\n}\n\n@media(max-width:760px) {\n  #jrj-sloppy-stage3-tune {\n    padding:30px 14px 46px;\n  }\n\n  .jrj-tune-hero,\n  .jrj-tune-card,\n  .jrj-warning,\n  .jrj-mini-builder {\n    padding:22px;\n    border-radius:20px;\n  }\n\n  .jrj-tune-grid {\n    grid-template-columns:1fr;\n  }\n\n  .jrj-video-box,\n  .jrj-warning,\n  .jrj-tune-card.full {\n    grid-column:auto;\n  }\n\n  .jrj-mini-grid {\n    grid-template-columns:1fr 1fr;\n  }\n\n  .jrj-mini-cta {\n    flex-direction:column;\n  }\n\n  .jrj-mini-btn {\n    width:100%;\n  }\n}\n\n@media(max-width:480px) {\n  .jrj-mini-grid {\n    grid-template-columns:1fr;\n  }\n}\n\u003c\/style\u003e\n\u003csection id=\"jrj-sloppy-stage3-tune\"\u003e\n\u003cdiv class=\"jrj-tune-wrap\"\u003e\n\u003cdiv class=\"jrj-tune-hero\"\u003e\n\u003cdiv class=\"jrj-tune-eyebrow\"\u003eSloppy Mechanics Stage 3 · Gen III + Gen IV GM LS\u003c\/div\u003e\n\u003ch2 class=\"jrj-tune-title\"\u003eSloppy Mechanics Stage 3 \u003cspan\u003eCam Tune File\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp class=\"jrj-tune-lead\"\u003eThis is a \u003cstrong class=\"jrj-highlight\"\u003epre-written performance tune file\u003c\/strong\u003e built for Gen III and Gen IV GM LS cars and trucks running a \u003cstrong\u003eSloppy Mechanics Stage 3 camshaft\u003c\/strong\u003e or similar aggressive cam setup. This calibration is designed for real cammed LS drivability — stronger idle control, better throttle response, corrected fueling, proper airflow modeling, and a hard-hitting 450HP-style street setup. \u003cbr\u003e\u003cbr\u003eThis is not a random pulled file. Your tune is built around your \u003cstrong\u003efactory read file, operating system, engine, transmission, injector data, cam setup, and full modification list\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cdiv class=\"jrj-tune-tags\"\u003e\n\u003cspan class=\"jrj-tune-tag blue\"\u003eGen III LS\u003c\/span\u003e \u003cspan class=\"jrj-tune-tag blue\"\u003eGen IV LS\u003c\/span\u003e \u003cspan class=\"jrj-tune-tag orange\"\u003eSloppy Stage 3\u003c\/span\u003e \u003cspan class=\"jrj-tune-tag yellow\"\u003e450HP Style Setup\u003c\/span\u003e \u003cspan class=\"jrj-tune-tag\"\u003eHP Tuners \/ EFI Live\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"jrj-tune-grid\"\u003e\n\u003cdiv class=\"jrj-tune-card jrj-feature-clean full\"\u003e\n\u003ch3\u003e\u003cspan class=\"jrj-highlight\"\u003eBig Cam LS Tune Built for Real Street Driving\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003eThe Sloppy Mechanics Stage 3 cam can make strong power, but it needs the tune handled correctly. Stock-style calibrations usually struggle with idle surge, stalling, bucking, dead pedal feel, poor cold starts, incorrect airflow, and fuel trims that are all over the place.\u003c\/p\u003e\n\u003cul class=\"jrj-tune-list\"\u003e\n\u003cli\u003e\u003cstrong\u003eBuilt for Gen III and Gen IV GM LS platforms\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eDesigned around Sloppy Mechanics Stage 3 camshaft setups\u003c\/li\u003e\n\u003cli\u003eCorrects idle airflow, spark, fueling, throttle response, and drivability\u003c\/li\u003e\n\u003cli\u003eSupports common bolt-ons like headers, cold air intake, exhaust, and intake manifold upgrades\u003c\/li\u003e\n\u003cli\u003eBuilt from your actual factory read file — not a one-size-fits-all upload\u003c\/li\u003e\n\u003cli\u003eAvailable for HP Tuners and EFI Live users\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"jrj-tune-card\"\u003e\n\u003ch3\u003eGen III Compatibility\u003c\/h3\u003e\n\u003cul class=\"jrj-tune-list\"\u003e\n\u003cli\u003e1999–2006 GM LS truck engines\u003c\/li\u003e\n\u003cli\u003e4.8L \/ 5.3L \/ 6.0L Gen III LS\u003c\/li\u003e\n\u003cli\u003eLS1 \/ LS6 car platforms\u003c\/li\u003e\n\u003cli\u003e1998–2002 Camaro \/ Firebird \/ Trans Am\u003c\/li\u003e\n\u003cli\u003e1997–2004 Corvette C5\u003c\/li\u003e\n\u003cli\u003e2004–2006 Pontiac GTO\u003c\/li\u003e\n\u003cli\u003eLS swap vehicles using Gen III PCM setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"jrj-tune-card\"\u003e\n\u003ch3\u003eGen IV Compatibility\u003c\/h3\u003e\n\u003cul class=\"jrj-tune-list\"\u003e\n\u003cli\u003e2007–2013 GM LS truck engines\u003c\/li\u003e\n\u003cli\u003e4.8L \/ 5.3L \/ 6.0L \/ 6.2L Gen IV LS\u003c\/li\u003e\n\u003cli\u003eAFM \/ DOD delete cammed truck setups\u003c\/li\u003e\n\u003cli\u003eVVT delete or VVT-limited cam setups\u003c\/li\u003e\n\u003cli\u003eLS2 \/ LS3 \/ L99-style car platforms\u003c\/li\u003e\n\u003cli\u003e2005–2013 Corvette \/ Camaro \/ CTS-V applications\u003c\/li\u003e\n\u003cli\u003eLS swap vehicles using Gen IV ECM setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"jrj-tune-card full\"\u003e\n\u003ch3\u003eWhat This Tune Fixes\u003c\/h3\u003e\n\u003cul class=\"jrj-tune-list\"\u003e\n\u003cli\u003eBig cam idle surge, hunting, and stalling\u003c\/li\u003e\n\u003cli\u003eHard starts and poor cold start behavior\u003c\/li\u003e\n\u003cli\u003eDead pedal feel after cam swap\u003c\/li\u003e\n\u003cli\u003eBucking and poor low-speed drivability\u003c\/li\u003e\n\u003cli\u003eIncorrect VE \/ MAF airflow modeling\u003c\/li\u003e\n\u003cli\u003eFuel trims caused by camshaft airflow changes\u003c\/li\u003e\n\u003cli\u003eLazy throttle response and weak part-throttle power\u003c\/li\u003e\n\u003cli\u003eIncorrect idle spark, base running airflow, and throttle follower behavior\u003c\/li\u003e\n\u003cli\u003eRear oxygen sensor and catalyst related codes when requested for off-road setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"jrj-tune-card\"\u003e\n\u003ch3\u003eRecommended Build Setup\u003c\/h3\u003e\n\u003cul class=\"jrj-tune-list\"\u003e\n\u003cli\u003eSloppy Mechanics Stage 3 camshaft or similar aggressive LS cam\u003c\/li\u003e\n\u003cli\u003e.550+ valve springs installed\u003c\/li\u003e\n\u003cli\u003eCorrect pushrod length verified\u003c\/li\u003e\n\u003cli\u003eLong tube headers recommended\u003c\/li\u003e\n\u003cli\u003eCold air intake or free-flowing intake system\u003c\/li\u003e\n\u003cli\u003eHealthy fuel pump and injectors\u003c\/li\u003e\n\u003cli\u003eProperly sealed intake and exhaust system\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"jrj-tune-card\"\u003e\n\u003ch3\u003eSupported Tuning Platforms\u003c\/h3\u003e\n\u003cul class=\"jrj-tune-list\"\u003e\n\u003cli\u003eHP Tuners MPVI2 \/ MPVI3 \/ MPVI4\u003c\/li\u003e\n\u003cli\u003eEFI Live V2 for supported Gen III \/ Gen IV applications\u003c\/li\u003e\n\u003cli\u003eWindows laptop required\u003c\/li\u003e\n\u003cli\u003eCustomer must be able to read and flash their own file\u003c\/li\u003e\n\u003cli\u003eHP Tuners credits or EFI Live licensing required\u003c\/li\u003e\n\u003cli\u003eBattery charger recommended during flashing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"jrj-tune-card full\"\u003e\n\u003ch3\u003eWhat We Need From You After Purchase\u003c\/h3\u003e\n\u003cul class=\"jrj-tune-list\"\u003e\n\u003cli\u003eEmail your stock read file to \u003ca href=\"mailto:Tunes@jrjonesracing.com\"\u003eTunes@JRJonesRacing.com\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eInclude your order number\u003c\/li\u003e\n\u003cli\u003eInclude year, make, model, engine size, and transmission\u003c\/li\u003e\n\u003cli\u003eList your camshaft, valve springs, injectors, intake, headers, exhaust, gear ratio, tire size, and converter if automatic\u003c\/li\u003e\n\u003cli\u003eConfirm if AFM \/ DOD \/ VVT has been deleted or modified\u003c\/li\u003e\n\u003cli\u003eTell us if rear O2 sensors, catalyst codes, or other off-road changes are needed\u003c\/li\u003e\n\u003cli\u003eTypical turnaround is minutes to 24 hours depending on workload\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"jrj-video-box\"\u003e\u003ciframe loading=\"lazy\" title=\"Sloppy Mechanics Stage 3 LS Cam Tune File\" src=\"https:\/\/www.youtube.com\/embed\/2S2GzzjOjrI\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003cdiv class=\"jrj-tune-card\"\u003e\n\u003ch3\u003eGood For\u003c\/h3\u003e\n\u003cul class=\"jrj-tune-list\"\u003e\n\u003cli\u003eStreet-driven cammed LS cars\u003c\/li\u003e\n\u003cli\u003eCammed LS trucks\u003c\/li\u003e\n\u003cli\u003eManual transmission big cam cars\u003c\/li\u003e\n\u003cli\u003eAFM\/DOD deleted Gen IV trucks\u003c\/li\u003e\n\u003cli\u003eBudget 450HP-style LS builds\u003c\/li\u003e\n\u003cli\u003eSloppy Stage 3 camshaft setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"jrj-tune-card\"\u003e\n\u003ch3\u003eNot For\u003c\/h3\u003e\n\u003cul class=\"jrj-tune-list\"\u003e\n\u003cli\u003eStock cam vehicles\u003c\/li\u003e\n\u003cli\u003eVehicles with mechanical problems\u003c\/li\u003e\n\u003cli\u003eEngines with low compression or valvetrain noise\u003c\/li\u003e\n\u003cli\u003eIncorrectly installed camshafts\u003c\/li\u003e\n\u003cli\u003eBoosted or nitrous setups unless custom details are provided\u003c\/li\u003e\n\u003cli\u003eCustomers unable to read and flash their own file\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"jrj-warning\"\u003e\n\u003ch3\u003e⚠️ Performance \u0026amp; Build Responsibility Notice\u003c\/h3\u003e\n\u003cp\u003eThis is \u003cstrong\u003enot a stock tune\u003c\/strong\u003e. This is a performance calibration designed for modified vehicles running a camshaft and supporting parts.\u003c\/p\u003e\n\u003cp\u003eYou are responsible for making sure your build quality is up to par before flashing or running this tune. Your engine, valvetrain, fuel system, drivetrain, wiring, sensors, injectors, exhaust, and all supporting parts must be correctly installed, mechanically sound, and capable of handling increased performance.\u003c\/p\u003e\n\u003cp\u003ePoor installation, worn parts, incorrect valve spring setup, wrong pushrod length, weak fuel supply, vacuum leaks, exhaust leaks, bad sensors, or unsafe mechanical condition can cause drivability issues or engine damage that no tune can fix.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eJ.R. Jones Automotive \u0026amp; Performance is not liable\u003c\/strong\u003e for engine failure, drivetrain damage, PCM\/ECU damage, or any issue caused by poor build quality, improper installation, unsafe flashing practices, incorrect customer-supplied information, or misuse of this tune.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"jrj-warning\"\u003e\n\u003ch3\u003e⚠️ Flashing Safety Notice\u003c\/h3\u003e\n\u003cp\u003eAlways flash using a hard-wired USB connection. Do not flash over weak connections, unstable power, or while the vehicle battery is low.\u003c\/p\u003e\n\u003cp\u003eUse a battery charger or maintainer during the write process. Do not interrupt the flash once writing has started.\u003c\/p\u003e\n\u003cp\u003eCustomer is responsible for having the proper tuning hardware, software, licensing, and stable equipment needed to read and flash the vehicle.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"jrj-mini-builder\"\u003e\n\u003cdiv class=\"jrj-mini-inner\"\u003e\n\u003cdiv class=\"jrj-mini-eye\"\u003eBuild Your Exact Tune\u003c\/div\u003e\n\u003ch3\u003eNeed More Than a Pre-Written File?\u003c\/h3\u003e\n\u003cp\u003eIf your setup has injectors, boost, nitrous, converter changes, gear\/tire changes, engine swap details, or anything beyond a basic cammed LS build, use the Build Your Tune page so we can match the calibration to your exact vehicle.\u003c\/p\u003e\n\u003cdiv class=\"jrj-mini-grid\"\u003e\n\u003cdiv class=\"jrj-mini-card\"\u003eGen III LS\u003c\/div\u003e\n\u003cdiv class=\"jrj-mini-card\"\u003eGen IV LS\u003c\/div\u003e\n\u003cdiv class=\"jrj-mini-card\"\u003eCamshaft Setup\u003c\/div\u003e\n\u003cdiv class=\"jrj-mini-card\"\u003eInjectors\u003c\/div\u003e\n\u003cdiv class=\"jrj-mini-card\"\u003eHeaders\u003c\/div\u003e\n\u003cdiv class=\"jrj-mini-card\"\u003eConverter\u003c\/div\u003e\n\u003cdiv class=\"jrj-mini-card\"\u003eGear \/ Tire Size\u003c\/div\u003e\n\u003cdiv class=\"jrj-mini-card\"\u003eAFM \/ DOD Delete\u003c\/div\u003e\n\u003cdiv class=\"jrj-mini-card\"\u003eVVT Delete\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"jrj-mini-cta\"\u003e\n\u003ca class=\"jrj-mini-btn jrj-mini-btn-primary\" href=\"\/pages\/build-your-tune\"\u003eBuild Your Tune →\u003c\/a\u003e \n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"J.R. Jones Racing","offers":[{"title":"Default Title","offer_id":42727984824387,"sku":null,"price":369.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0659\/1964\/7811\/files\/450hp.png?v=1777358896"},{"product_id":"gm-geniii-and-gen4-450hp-truck-tune","title":"1999–2013 Silverado \/ Sierra \/ Yukon \/ Denali (4.8L, 5.3L, 6.0L ETC | Sloppy Mechanics Stage 3 Cam Tune Files | 450HP | HP Tuners Required)","description":"\u003cp\u003e\u003clink rel=\"preconnect\" href=\"https:\/\/fonts.googleapis.com\"\u003e \u003clink href=\"https:\/\/fonts.googleapis.com\/css2?family=Barlow+Condensed:wght@700;900\u0026amp;family=Barlow:wght@400;500;600;700\u0026amp;display=swap\" rel=\"stylesheet\"\u003e\u003c\/p\u003e\n\u003cstyle\u003e\n#jrj-450hp-product,\n#jrj-450hp-product * {\n  box-sizing: border-box;\n}\n\n#jrj-450hp-product {\n  --orange: #FF5A00;\n  --yellow: #FFD000;\n  --bg: #090B0F;\n  --panel: #16191F;\n  --panel2: #1C2029;\n  --border: 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.jrj450-video-cta {\n    padding: 22px;\n  }\n}\n\u003c\/style\u003e\n\u003csection id=\"jrj-450hp-product\"\u003e\n\u003cdiv class=\"jrj450-wrap\"\u003e\n\u003cdiv class=\"jrj450-hero\"\u003e\n\u003cdiv class=\"jrj450-eyebrow\"\u003ePre-Written Tune File · High Performance Build\u003c\/div\u003e\n\u003ch2 class=\"jrj450-title\"\u003eUltimate GM \u003cspan\u003e450HP Truck Tune\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cdiv class=\"jrj450-subtitle\"\u003eGen III + Gen IV LS Trucks · One File. No Variants. Just Results.\u003c\/div\u003e\n\u003cp class=\"jrj450-lead\"\u003eThis is the \u003cstrong\u003eUltimate GM 450HP pre-written tune file\u003c\/strong\u003e, built from a real-world cammed LS truck combo and refined for Gen III and Gen IV GM trucks. If your truck is running a rowdy cam, long tubes, intake upgrades, and you want it to \u003cstrong\u003estart clean, idle mean, and pull hard\u003c\/strong\u003e, this file is built for that kind of setup.\u003c\/p\u003e\n\u003cdiv class=\"jrj450-tags\"\u003e\n\u003cspan class=\"jrj450-tag orange\"\u003e4.8L \/ 5.3L \/ 6.0L\u003c\/span\u003e \u003cspan class=\"jrj450-tag orange\"\u003eSilverado \/ Sierra\u003c\/span\u003e \u003cspan class=\"jrj450-tag orange\"\u003eTahoe \/ Yukon \/ Suburban\u003c\/span\u003e \u003cspan class=\"jrj450-tag yellow\"\u003eEngine + Transmission Tune\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"jrj450-actions\"\u003e\n\u003ca href=\"mailto:Tunes@jrjonesracing.com\" class=\"jrj450-btn jrj450-btn-primary\"\u003eEmail Your File →\u003c\/a\u003e \u003ca href=\"sms:+19102315505\" class=\"jrj450-btn jrj450-btn-secondary\"\u003eText Jason\u003c\/a\u003e \u003ca href=\"https:\/\/youtu.be\/4Asty8NNCqM\" class=\"jrj450-btn jrj450-btn-secondary\" target=\"_blank\"\u003eHow To Send File\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"jrj450-grid\"\u003e\n\u003cdiv class=\"jrj450-card\"\u003e\n\u003ch3\u003eBuilt Around a Proven 450HP Combo\u003c\/h3\u003e\n\u003cp\u003eThe demo truck used to develop this file is a real street build, not a guessed calibration.\u003c\/p\u003e\n\u003cul class=\"jrj450-list\"\u003e\n\u003cli\u003e\u003cstrong\u003eSloppy Mechanics Stage 3 Camshaft\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eTBSS Intake Manifold\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCold Air Intake\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eLong Tube Headers\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHigh-Flow Y-Pipe \u0026amp; Free-Flowing Exhaust\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eFull Engine Tune AND Transmission Tune Included\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"jrj450-card\"\u003e\n\u003ch3\u003eWhat This Tune Delivers\u003c\/h3\u003e\n\u003cul class=\"jrj450-list\"\u003e\n\u003cli\u003eAggressive, consistent \u003cstrong\u003e450HP-capable calibration\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eClean cold start with controlled cam chop once warm\u003c\/li\u003e\n\u003cli\u003eHelps fix bucking, surging, stalling, and poor idle behavior\u003c\/li\u003e\n\u003cli\u003eSharper throttle response without making the truck jumpy\u003c\/li\u003e\n\u003cli\u003eOptimized spark, fueling, airflow, and torque management\u003c\/li\u003e\n\u003cli\u003eTransmission tuning that firms up shifts without abusing the drivetrain\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"jrj450-card\"\u003e\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul class=\"jrj450-list\"\u003e\n\u003cli\u003eGM Gen III \u0026amp; Gen IV LS trucks — \u003cstrong\u003e4.8L \/ 5.3L \/ 6.0L\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSilverado \/ Sierra 1500 \u0026amp; HD\u003c\/li\u003e\n\u003cli\u003eTahoe, Suburban, Yukon, Denali, Avalanche, Escalade\u003c\/li\u003e\n\u003cli\u003eBest suited for big-cam, full bolt-on LS truck builds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"jrj450-card\"\u003e\n\u003ch3\u003eRequirements\u003c\/h3\u003e\n\u003cul class=\"jrj450-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eHP Tuners MPVI2 \/ MPVI3 \/ MPVI4\u003c\/strong\u003e or EFI Live interface\u003c\/li\u003e\n\u003cli\u003eHP Tuners credits or EFI Live licenses — \u003cstrong\u003enot included\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eWindows laptop with VCM Suite or EFI Live software\u003c\/li\u003e\n\u003cli\u003eAbility to read, save, email, and flash your tune file\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"jrj450-card full\"\u003e\n\u003ch3\u003eWhat We Need From You\u003c\/h3\u003e\n\u003cul class=\"jrj450-list\"\u003e\n\u003cli\u003eAfter purchase, email your HP Tuners or EFI Live factory read file to \u003ca href=\"mailto:Tunes@jrjonesracing.com\"\u003eTunes@JRJonesRacing.com\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eInclude your \u003cstrong\u003eorder number and full mod list\u003c\/strong\u003e — cam, intake, headers, exhaust, injectors, converter, etc.\u003c\/li\u003e\n\u003cli\u003eConfirm your \u003cstrong\u003eengine size\u003c\/strong\u003e and transmission type\u003c\/li\u003e\n\u003cli\u003eTypical turnaround can be fast, but allow up to \u003cstrong\u003e24 hours\u003c\/strong\u003e depending on workload\u003c\/li\u003e\n\u003cli\u003eUp to \u003cstrong\u003e3 revisions included\u003c\/strong\u003e if your setup needs follow-up adjustments\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"jrj450-video\"\u003e\u003ciframe title=\"Ultimate GM 450HP Truck Tune In Action\" src=\"https:\/\/www.youtube.com\/embed\/2S2GzzjOjrI\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003cdiv class=\"jrj450-warning\"\u003e\n\u003ch3\u003eFlashing \u0026amp; Safety Notice\u003c\/h3\u003e\n\u003cp\u003eFlashing a PCM or TCM always carries risk if done incorrectly. Protect your hardware and follow safe flashing practices.\u003c\/p\u003e\n\u003cul class=\"jrj450-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eNever flash over Bluetooth or Wi-Fi\u003c\/strong\u003e — use a hard-wired USB connection only\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnect a battery charger\u003c\/strong\u003e to maintain stable voltage during the write process\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDo not cycle the key, unplug cables, or move the laptop\u003c\/strong\u003e during the write\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"jrj450-note\"\u003e\u003cstrong\u003eJ.R. Jones Automotive \u0026amp; Performance\u003c\/strong\u003e is not liable for PCM\/TCM damage caused by unsafe flashing practices, unstable voltage, interrupted writes, or hardware failures.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"jrj450-video-cta\"\u003e\n\u003cdiv\u003e\n\u003ch3\u003eNeed Help Sending Your Tune File?\u003c\/h3\u003e\n\u003cp\u003eWatch the step-by-step video showing how to read your stock file with HP Tuners and email it in for calibration.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ca href=\"https:\/\/youtu.be\/4Asty8NNCqM\" class=\"jrj450-btn jrj450-btn-primary\" target=\"_blank\"\u003eWatch How-To Video →\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e","brand":"J.R. Jones Racing","offers":[{"title":"Default Title","offer_id":42769568268355,"sku":null,"price":349.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0659\/1964\/7811\/files\/20325ec5-d15a-430d-b69f-a752b189328b.png?v=1777858211"},{"product_id":"1998-2006-camaro-corvette-ls1-ls6-tune-file-stock-stage-1-stage-2-cam-hp-tuners","title":"1998–2006 Camaro \/ Corvette LS1 LS6 Custom Performance Tune File (Stock \u0026 Stage 1–2 Cam | HP Tuners)","description":"\u003cp\u003e \u003c\/p\u003e\n\u003c!-- ═══════════════════════════════════════════════\n     PASTE EVERYTHING BELOW INTO SHOPIFY PRODUCT\n     DESCRIPTION (HTML editor)\n═══════════════════════════════════════════════ --\u003e\n\u003cp\u003e\u003clink rel=\"preconnect\" href=\"https:\/\/fonts.googleapis.com\"\u003e \u003clink href=\"https:\/\/fonts.googleapis.com\/css2?family=Barlow+Condensed:wght@700;900\u0026amp;family=Barlow:wght@400;500;600;700\u0026amp;display=swap\" rel=\"stylesheet\"\u003e\u003c\/p\u003e\n\u003cstyle\u003e\n#jrj-pd-ls1 {\n  font-family: 'Barlow', sans-serif;\n  background: #111318;\n  color: #E8EDF2;\n  font-size: 16px;\n  line-height: 1.65;\n  padding: 48px 24px;\n}\n#jrj-pd-ls1 * { box-sizing: border-box; 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letter-spacing: .6px; text-transform: uppercase;\n  background: #FF5A00; color: #fff; padding: 15px 28px;\n  border-radius: 12px; white-space: nowrap;\n  box-shadow: 0 6px 20px rgba(255,90,0,.28);\n  transition: filter .15s, transform .15s; flex-shrink: 0;\n}\n.pdls1-btn:hover { filter: brightness(1.1); transform: translateY(-1px); text-decoration: none; }\n\u003c\/style\u003e\n\u003cdiv id=\"jrj-pd-ls1\"\u003e\n\u003cdiv class=\"pdls1-wrap\"\u003e\n\u003c!-- EYEBROW + TITLE --\u003e\n\u003cdiv class=\"pdls1-eyebrow\"\u003ePre-Written Tune Files\u003c\/div\u003e\n\u003ch2 class=\"pdls1-title\"\u003e1998–2006 Camaro \u0026amp; Corvette LS1 \/ LS6 Tune Files\u003c\/h2\u003e\n\u003cp class=\"pdls1-lead\"\u003eProfessionally calibrated tune files built specifically for \u003cstrong\u003e1998–2006 LS1 and LS6 Gen III platforms\u003c\/strong\u003e — Camaro SS, Corvette C5, Firebird \/ Trans Am, GTO, and CTS-V. Each file is dialed in for \u003cstrong\u003eclean idle, crisp throttle response, optimized fueling and spark,\u003c\/strong\u003e and real-world drivability — whether your car is stock or wearing an aftermarket cam.\u003c\/p\u003e\n\u003c!-- PLATFORMS --\u003e\n\u003cdiv class=\"pdls1-platforms\"\u003e\n\u003cdiv class=\"pdls1-platform\"\u003e⚙️ HP Tuners MPVI2 \/ MPVI3 \/ MPVI4\u003c\/div\u003e\n\u003cdiv class=\"pdls1-platform\"\u003e⚙️ EFI Live V2 \/ AutoCal\u003c\/div\u003e\n\u003cdiv class=\"pdls1-platform\"\u003e🔥 Gen III LS1 \/ LS6 — P01 \/ P59 PCM\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- VARIANT CARDS --\u003e\n\u003cdiv class=\"pdls1-variants\"\u003e\n\u003c!-- VARIANT 1: STOCK --\u003e\n\u003cdiv class=\"pdls1-variant\"\u003e\n\u003cdiv style=\"display: flex; align-items: center; gap: 10px;\"\u003e\n\u003cdiv class=\"pdls1-variant-num\"\u003e1\u003c\/div\u003e\n\u003ch5\u003eBase Tune — Stock Car\u003c\/h5\u003e\n\u003c\/div\u003e\n\u003cp\u003eBuilt for stock or lightly modified LS1 \/ LS6 cars running bolt-ons — cold air intake, headers, exhaust, or throttle body. Removes the flat factory tune and wakes the engine up without any hardware changes.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCrisp throttle response from idle\u003c\/li\u003e\n\u003cli\u003eImproved idle stability and fuel trims\u003c\/li\u003e\n\u003cli\u003eBetter shift quality and firmness\u003c\/li\u003e\n\u003cli\u003eOptimized low- and mid-range torque\u003c\/li\u003e\n\u003cli\u003eCleaner overall drivability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- VARIANT 2: STAGE 1 CAM --\u003e\n\u003cdiv class=\"pdls1-variant\"\u003e\n\u003cdiv style=\"display: flex; align-items: center; gap: 10px;\"\u003e\n\u003cdiv class=\"pdls1-variant-num\"\u003e2\u003c\/div\u003e\n\u003ch5\u003eStage 1 Cam Tune\u003c\/h5\u003e\n\u003c\/div\u003e\n\u003cp\u003eDesigned for \u003cstrong\u003eStage 1 LS1 \/ LS6 cam grinds\u003c\/strong\u003e. Corrects airflow modeling, fueling, and idle parameters thrown off by the cam swap. Popular Stage 1 cams this covers:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eTexas Speed Stage 1 (218\/220 .560\"\/.560\" 114 LSA)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eBTR Stage 1 LS Camshaft\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eComp Cams 54-450-11 (216\/220 .570\"\/.570\")\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eTick Performance Stage 1\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eOther mild 212–222° duration grinds\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- VARIANT 3: STAGE 2 CAM --\u003e\n\u003cdiv class=\"pdls1-variant\"\u003e\n\u003cdiv style=\"display: flex; align-items: center; gap: 10px;\"\u003e\n\u003cdiv class=\"pdls1-variant-num\"\u003e3\u003c\/div\u003e\n\u003ch5\u003eStage 2 Cam Tune\u003c\/h5\u003e\n\u003c\/div\u003e\n\u003cp\u003eBuilt for \u003cstrong\u003eStage 2 LS1 \/ LS6 cam grinds\u003c\/strong\u003e. Handles the increased duration and lift that requires a full recalibration of VE, fueling, and idle control. Popular Stage 2 cams this covers:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eTexas Speed 224\/228 .600\"\/.600\" 112 LSA\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eBTR Stage 2 (228\/228 .595\"\/.595\")\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eComp Cams 54-469-11 (224\/230 .570\"\/.570\")\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eTick Performance Stage 2\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eOther moderate 222–230° duration grinds\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- WHAT WE NEED + VEHICLES --\u003e\n\u003cdiv class=\"pdls1-grid\"\u003e\n\u003cdiv class=\"pdls1-box\"\u003e\n\u003ch4\u003eWhat We Need From You\u003c\/h4\u003e\n\u003cul class=\"pdls1-list\"\u003e\n\u003cli\u003eAfter purchase, \u003cstrong\u003eemail your stock HP Tuners read file\u003c\/strong\u003e to \u003ca href=\"mailto:Tunes@jrjonesracing.com\"\u003eTunes@JRJonesRacing.com\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eInclude your \u003cstrong\u003eorder number and full mod list\u003c\/strong\u003e — cam specs, headers, intake, injectors, converter, etc.\u003c\/li\u003e\n\u003cli\u003eTypical turnaround: \u003cstrong\u003eminutes\u003c\/strong\u003e — up to \u003cstrong\u003e24 hours\u003c\/strong\u003e depending on workload\u003c\/li\u003e\n\u003cli\u003eUp to \u003cstrong\u003e3 revisions included\u003c\/strong\u003e if your setup needs follow-up adjustments\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pdls1-box\"\u003e\n\u003ch4\u003eSupported Vehicles\u003c\/h4\u003e\n\u003cul class=\"pdls1-list\"\u003e\n\u003cli\u003e1998–2002 Chevrolet Camaro SS (5.7L LS1)\u003c\/li\u003e\n\u003cli\u003e1997–2004 Chevrolet Corvette C5 (5.7L LS1 \/ LS6)\u003c\/li\u003e\n\u003cli\u003e1998–2002 Pontiac Firebird \/ Trans Am (5.7L LS1)\u003c\/li\u003e\n\u003cli\u003e2004–2006 Pontiac GTO (5.7L LS1 \/ 6.0L LS2 — confirm PCM)\u003c\/li\u003e\n\u003cli\u003e2004–2005 Cadillac CTS-V (5.7L LS6)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- WARNING --\u003e\n\u003cdiv class=\"pdls1-warning\"\u003e\n\u003ch4\u003e⚠️ Flashing \u0026amp; Safety Notice\u003c\/h4\u003e\n\u003cp\u003eFlashing your PCM can be \u003cstrong\u003edangerous if not done properly\u003c\/strong\u003e. Follow these steps to avoid bricking your PCM:\u003c\/p\u003e\n\u003cul class=\"pdls1-list\" style=\"margin-bottom: 14px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eNever flash over Bluetooth or Wi-Fi\u003c\/strong\u003e — always use a hard-wired USB connection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnect a battery charger\u003c\/strong\u003e to maintain stable voltage during the write process\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDo not interrupt\u003c\/strong\u003e the process once writing has begun\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eJ.R. Jones Automotive \u0026amp; Performance\u003c\/strong\u003e is not liable for any PCM or ECU damage resulting from improper flashing or unsafe tuning practices.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- VIDEO CTA --\u003e\n\u003cdiv class=\"pdls1-video-cta\"\u003e\n\u003cp\u003e\u003cstrong\u003eNeed help sending your tune file?\u003c\/strong\u003e\u003cbr\u003eWatch our step-by-step video on how to read your stock file using HP Tuners and email it for calibration.\u003c\/p\u003e\n\u003ca class=\"pdls1-btn\" href=\"https:\/\/youtu.be\/4Asty8NNCqM\" target=\"_blank\"\u003e▶ Watch How-To Video\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"J.R. Jones Racing","offers":[{"title":"Stock Vehicle","offer_id":43058766938179,"sku":null,"price":249.99,"currency_code":"USD","in_stock":true},{"title":"Stage 1 Cams","offer_id":43058766970947,"sku":null,"price":349.99,"currency_code":"USD","in_stock":true},{"title":"Stage 2 Cams","offer_id":43058767003715,"sku":null,"price":399.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0659\/1964\/7811\/files\/98-06_camero_stock.png?v=1774189389"},{"product_id":"chopacabra-cam-tune-1998-2006-gm-ls-texas-speed","title":"1998–2006 Chevy Silverado \/ Sierra 4.8 5.3 6.0L Chopacabra Cam Tune File | Texas Speed Chopacabra Pre-Written Tune (HP Tuners \/ EFI Live Required)","description":"\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003clink href=\"https:\/\/fonts.googleapis.com\" rel=\"preconnect\"\u003e \u003clink rel=\"stylesheet\" href=\"https:\/\/fonts.googleapis.com\/css2?family=Barlow+Condensed:wght@700;900\u0026amp;family=Barlow:wght@400;500;600;700\u0026amp;display=swap\"\u003e\u003c\/p\u003e\n\u003cstyle\u003e\n#jrj-9806-chopacabra,\n#jrj-9806-chopacabra * {\n  box-sizing:border-box;\n}\n\n#jrj-9806-chopacabra {\n  --o:#FF5A00;\n  --o2:#ff7a1a;\n  --y:#FFD000;\n  --p:#16191F;\n  --p2:#1C2029;\n  --bd:rgba(255,255,255,.09);\n  --m:#8B94A3;\n  --t:#E8EDF2;\n  --blue:#00E5FF;\n  --purple:#9333EA;\n\n  font-family:'Barlow',sans-serif;\n  background:\n    radial-gradient(circle at 8% 0%,rgba(255,90,0,.14),transparent 25%),\n    radial-gradient(circle at 100% 16%,rgba(0,229,255,.10),transparent 22%),\n    linear-gradient(180deg,#090909 0%,#0d1117 34%,#090b0f 100%);\n  color:var(--t);\n  line-height:1.65;\n  padding:48px 18px 60px;\n}\n\n#jrj-9806-chopacabra a {\n  color:var(--blue);\n  text-decoration:none;\n}\n\n#jrj-9806-chopacabra a:hover {\n  text-decoration:underline;\n}\n\n.jrj-tune-wrap {\n  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letter-spacing:1.5px;\n  text-transform:uppercase;\n  color:var(--blue);\n  margin-bottom:20px;\n}\n\n.jrj-tune-eyebrow:before {\n  content:'';\n  width:7px;\n  height:7px;\n  border-radius:50%;\n  background:var(--blue);\n}\n\n.jrj-tune-title {\n  position:relative;\n  font-family:'Barlow Condensed',sans-serif;\n  font-weight:900;\n  font-size:clamp(42px,7vw,78px);\n  text-transform:uppercase;\n  color:#fff;\n  line-height:.92;\n  letter-spacing:-.5px;\n  margin:0 0 16px;\n  max-width:980px;\n}\n\n.jrj-tune-title span {\n  color:var(--blue);\n}\n\n.jrj-tune-lead {\n  position:relative;\n  color:var(--m);\n  font-size:17px;\n  max-width:920px;\n  margin:0 0 22px;\n  line-height:1.75;\n}\n\n.jrj-tune-lead strong,\n.jrj-tune-card strong,\n.jrj-warning strong,\n.jrj-mini-builder strong {\n  color:#fff;\n}\n\n.jrj-highlight {\n  color:var(--y) !important;\n  font-weight:900;\n}\n\n.jrj-tune-tags {\n  position:relative;\n  display:flex;\n  flex-wrap:wrap;\n  gap:8px;\n}\n\n.jrj-tune-tag {\n  display:inline-flex;\n  padding:7px 12px;\n  border-radius:8px;\n  font-family:'Barlow Condensed',sans-serif;\n  font-size:13px;\n  font-weight:800;\n  letter-spacing:.55px;\n  text-transform:uppercase;\n  color:#fff;\n  background:rgba(255,255,255,.07);\n  border:1px solid rgba(255,255,255,.1);\n}\n\n.jrj-tune-tag.orange {\n  color:var(--o);\n  background:rgba(255,90,0,.13);\n  border-color:rgba(255,90,0,.28);\n}\n\n.jrj-tune-tag.yellow {\n  color:var(--y);\n  background:rgba(255,208,0,.11);\n  border-color:rgba(255,208,0,.24);\n}\n\n.jrj-tune-tag.blue {\n  color:var(--blue);\n  background:rgba(0,229,255,.10);\n  border-color:rgba(0,229,255,.24);\n}\n\n.jrj-tune-grid {\n  display:grid;\n  grid-template-columns:1fr 1fr;\n  gap:18px;\n  margin-top:18px;\n}\n\n.jrj-tune-card {\n  background:\n    linear-gradient(180deg,rgba(255,255,255,.035),rgba(255,255,255,.012)),\n    var(--p);\n  border:1px solid var(--bd);\n  border-radius:20px;\n  padding:26px;\n  box-shadow:0 18px 44px rgba(0,0,0,.24);\n}\n\n.jrj-tune-card.full {\n  grid-column:1 \/ -1;\n}\n\n.jrj-tune-card h3,\n.jrj-mini-builder h3 {\n  font-family:'Barlow Condensed',sans-serif;\n  font-weight:900;\n  font-size:30px;\n  line-height:1;\n  text-transform:uppercase;\n  color:#fff;\n  margin:0 0 16px;\n}\n\n.jrj-tune-card p,\n.jrj-mini-builder p {\n  color:var(--m);\n  font-size:16px;\n  margin:0 0 14px;\n  line-height:1.7;\n}\n\n.jrj-tune-list {\n  list-style:none;\n  display:grid;\n  gap:10px;\n  padding:0;\n  margin:0;\n}\n\n.jrj-tune-list li {\n  position:relative;\n  color:#B8C0CC;\n  font-size:15px;\n  line-height:1.55;\n  padding:11px 12px 11px 34px;\n  background:rgba(255,255,255,.035);\n  border:1px solid rgba(255,255,255,.06);\n  border-radius:11px;\n}\n\n.jrj-tune-list li:before {\n  content:'\\2713';\n  position:absolute;\n  left:13px;\n  top:10px;\n  color:var(--blue);\n  font-weight:900;\n}\n\n.jrj-feature-clean {\n  background:\n    linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.01)),\n    var(--p);\n  border:1px solid rgba(255,255,255,.12);\n  position:relative;\n}\n\n.jrj-feature-clean:before {\n  content:'';\n  position:absolute;\n  top:0;\n  left:0;\n  width:100%;\n  height:3px;\n  background:linear-gradient(90deg,var(--blue),var(--purple),var(--o));\n  border-top-left-radius:20px;\n  border-top-right-radius:20px;\n}\n\n.jrj-video-row {\n  grid-column:1 \/ -1;\n  display:grid;\n  grid-template-columns:.78fr 1.22fr;\n  gap:18px;\n  align-items:stretch;\n}\n\n.jrj-short-video {\n  border-radius:20px;\n  overflow:hidden;\n  background:#000;\n  aspect-ratio:9 \/ 16;\n  border:1px solid rgba(255,255,255,.1);\n  box-shadow:0 18px 44px rgba(0,0,0,.28);\n  max-height:680px;\n}\n\n.jrj-wide-video {\n  border-radius:20px;\n  overflow:hidden;\n  background:#000;\n  aspect-ratio:16 \/ 9;\n  border:1px solid rgba(255,255,255,.1);\n  box-shadow:0 18px 44px rgba(0,0,0,.28);\n  align-self:center;\n}\n\n.jrj-short-video iframe,\n.jrj-wide-video iframe {\n  width:100%;\n  height:100%;\n  border:0;\n  display:block;\n}\n\n.jrj-warning {\n  grid-column:1 \/ -1;\n  background:\n    linear-gradient(135deg,rgba(255,90,0,.13),rgba(255,208,0,.05)),\n    var(--p);\n  border:1px solid rgba(255,90,0,.28);\n  border-left:4px solid var(--o);\n  border-radius:20px;\n  padding:26px;\n  box-shadow:0 18px 44px rgba(0,0,0,.22);\n}\n\n.jrj-warning h3 {\n  font-family:'Barlow Condensed',sans-serif;\n  font-weight:900;\n  font-size:30px;\n  line-height:1;\n  text-transform:uppercase;\n  color:var(--o);\n  margin:0 0 16px;\n}\n\n.jrj-warning p {\n  color:#B8C0CC;\n  font-size:16px;\n  margin:0 0 14px;\n  line-height:1.7;\n}\n\n.jrj-warning p:last-child {\n  margin-bottom:0;\n}\n\n.jrj-mini-builder {\n  margin-top:22px;\n  background:\n    radial-gradient(circle at top right,rgba(0,229,255,.07),transparent 28%),\n    linear-gradient(180deg,rgba(255,255,255,.035),rgba(255,255,255,.012)),\n    var(--p);\n  border:1px solid rgba(255,255,255,.08);\n  border-radius:22px;\n  padding:28px;\n  box-shadow:0 18px 44px rgba(0,0,0,.24);\n  position:relative;\n  overflow:hidden;\n}\n\n.jrj-mini-builder:before {\n  content:'BUILD IT';\n  position:absolute;\n  right:-8px;\n  top:8px;\n  font-family:'Barlow Condensed',sans-serif;\n  font-weight:900;\n  font-size:clamp(52px,9vw,120px);\n  line-height:.84;\n  letter-spacing:.08em;\n  color:rgba(255,255,255,.028);\n  transform:skewX(-8deg);\n  pointer-events:none;\n}\n\n.jrj-mini-inner {\n  position:relative;\n  z-index:1;\n}\n\n.jrj-mini-eye {\n  display:inline-flex;\n  align-items:center;\n  gap:8px;\n  padding:7px 16px;\n  background:rgba(255,90,0,.12);\n  border:1px solid rgba(255,90,0,.22);\n  border-radius:999px;\n  font-family:'Barlow Condensed',sans-serif;\n  font-size:12px;\n  font-weight:700;\n  letter-spacing:1.2px;\n  text-transform:uppercase;\n  color:var(--o);\n  margin-bottom:14px;\n}\n\n.jrj-mini-grid {\n  display:grid;\n  grid-template-columns:repeat(3,1fr);\n  gap:12px;\n  margin-top:20px;\n}\n\n.jrj-mini-card {\n  background:\n    linear-gradient(180deg,rgba(255,255,255,.03),rgba(255,255,255,.01)),\n    var(--p2);\n  border:1px solid rgba(255,255,255,.08);\n  border-radius:14px;\n  padding:15px 12px;\n  font-family:'Barlow Condensed',sans-serif;\n  font-size:15px;\n  font-weight:800;\n  letter-spacing:.45px;\n  text-transform:uppercase;\n  color:#B8C0CC;\n  text-align:center;\n  transition:.18s;\n}\n\n.jrj-mini-card:hover {\n  border-color:rgba(0,229,255,.45);\n  color:#fff;\n  background:rgba(0,229,255,.08);\n  transform:translateY(-2px);\n}\n\n.jrj-mini-cta {\n  margin-top:22px;\n  display:flex;\n  gap:12px;\n  flex-wrap:wrap;\n}\n\n.jrj-mini-btn {\n  flex:1;\n  min-height:54px;\n  border-radius:14px;\n  display:inline-flex;\n  align-items:center;\n  justify-content:center;\n  gap:10px;\n  font-family:'Barlow',sans-serif;\n  font-weight:800;\n  text-decoration:none !important;\n  font-size:15px;\n  letter-spacing:.4px;\n  transition:.18s;\n  padding:0 20px;\n  white-space:nowrap;\n}\n\n.jrj-mini-btn-primary {\n  background:linear-gradient(135deg,#ff7a1a 0%,#ff5a00 100%);\n  color:#fff !important;\n  border:1px solid rgba(255,255,255,.08);\n  box-shadow:0 12px 30px rgba(255,90,0,.22),inset 0 1px 0 rgba(255,255,255,.18);\n}\n\n.jrj-mini-btn-secondary {\n  background:rgba(255,255,255,.06);\n  color:#fff !important;\n  border:1px solid rgba(255,255,255,.12);\n}\n\n.jrj-mini-btn:hover {\n  transform:translateY(-2px);\n  text-decoration:none !important;\n}\n\n@media(max-width:760px) {\n  #jrj-9806-chopacabra {\n    padding:30px 14px 46px;\n  }\n\n  .jrj-tune-hero,\n  .jrj-tune-card,\n  .jrj-warning,\n  .jrj-mini-builder {\n    padding:22px;\n    border-radius:20px;\n  }\n\n  .jrj-tune-grid,\n  .jrj-video-row {\n    grid-template-columns:1fr;\n  }\n\n  .jrj-warning,\n  .jrj-tune-card.full,\n  .jrj-video-row {\n    grid-column:auto;\n  }\n\n  .jrj-short-video {\n    max-width:360px;\n    width:100%;\n    margin:0 auto;\n  }\n\n  .jrj-mini-grid {\n    grid-template-columns:1fr 1fr;\n  }\n\n  .jrj-mini-cta {\n    flex-direction:column;\n  }\n\n  .jrj-mini-btn {\n    width:100%;\n  }\n}\n\n@media(max-width:480px) {\n  .jrj-mini-grid {\n    grid-template-columns:1fr;\n  }\n}\n\u003c\/style\u003e\n\u003csection id=\"jrj-9806-chopacabra\"\u003e\n\u003cdiv class=\"jrj-tune-wrap\"\u003e\n\u003cdiv class=\"jrj-tune-hero\"\u003e\n\u003cdiv class=\"jrj-tune-eyebrow\"\u003ePre-Written Tune File - 1998-2006 GM LS\u003c\/div\u003e\n\u003ch2 class=\"jrj-tune-title\"\u003e1998-2006 GM LS \u003cspan\u003eChopacabra Cam Tune File\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp class=\"jrj-tune-lead\"\u003eThis tune file is built for \u003cstrong class=\"jrj-highlight\"\u003e1998-2006 GM LS truck, SUV, and performance platforms\u003c\/strong\u003e running 4.8L, 5.3L, 5.7L, or 6.0L combinations with a \u003cstrong\u003eTexas Speed Chopacabra camshaft\u003c\/strong\u003e or similar LS cam setup. \u003cbr\u003e\u003cbr\u003eThis is made for customers who want the aggressive Chopacabra idle, but still want the vehicle to start clean, idle right, drive smooth, and behave on the street. Send your factory read file and full mod list, and we build the calibration around your exact setup. \u003cbr\u003e\u003cbr\u003eThis is not a random pulled file. Your tune is built around your \u003cstrong\u003efactory read file, operating system, engine size, transmission, cam setup, converter, gear ratio, tire size, and full modification list\u003c\/strong\u003e. We tune, test, log, revise, and communicate until the file is working the way it should for your supported setup.\u003c\/p\u003e\n\u003cdiv class=\"jrj-tune-tags\"\u003e\n\u003cspan class=\"jrj-tune-tag blue\"\u003e1998-2006 GM LS\u003c\/span\u003e \u003cspan class=\"jrj-tune-tag blue\"\u003e4.8L \/ 5.3L \/ 5.7L \/ 6.0L\u003c\/span\u003e \u003cspan class=\"jrj-tune-tag orange\"\u003eTexas Speed Chopacabra\u003c\/span\u003e \u003cspan class=\"jrj-tune-tag yellow\"\u003eReal Revision Support\u003c\/span\u003e \u003cspan class=\"jrj-tune-tag\"\u003eHP Tuners\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"jrj-tune-grid\"\u003e\n\u003cdiv class=\"jrj-tune-card jrj-feature-clean full\"\u003e\n\u003ch3\u003e\u003cspan class=\"jrj-highlight\"\u003eBuilt for 1998-2006 GM LS Chopacabra Cam Setups\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003eThe Chopacabra cam can deliver the idle people want, but the tune is what makes the vehicle actually enjoyable. These GM LS platforms need startup, airflow, fueling, spark, idle control, and transmission behavior corrected so the vehicle does not stall, surge, buck, or fight you in traffic.\u003c\/p\u003e\n\u003cul class=\"jrj-tune-list\"\u003e\n\u003cli\u003e\u003cstrong\u003eBuilt for 1998-2006 Silverado, Sierra, Tahoe, Yukon, Suburban, Avalanche, Escalade, Camaro, Firebird, Corvette, GTO, CTS-V, TrailBlazer SS, and other supported LS platforms\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eDesigned for Texas Speed Chopacabra camshaft setups and similar LS cam combinations\u003c\/li\u003e\n\u003cli\u003eSupports common bolt-ons like headers, cold air intake, exhaust, intake manifold upgrades, converter changes, injector upgrades, and gear\/tire changes\u003c\/li\u003e\n\u003cli\u003eBuilt from your actual factory read file, not a one-size-fits-all upload\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRevision support included\u003c\/strong\u003e so the tune can be worked through properly\u003c\/li\u003e\n\u003cli\u003eRequires HP Tuners hardware and credits for flashing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"jrj-tune-card\"\u003e\n\u003ch3\u003eCam Compatibility\u003c\/h3\u003e\n\u003cul class=\"jrj-tune-list\"\u003e\n\u003cli\u003e\u003cstrong\u003eTexas Speed Chopacabra\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSimilar LS camshafts\u003c\/strong\u003e with cam specs or full build details provided\u003c\/li\u003e\n\u003cli\u003eCammed 4.8L, 5.3L, 5.7L, and 6.0L LS combinations\u003c\/li\u003e\n\u003cli\u003eTruck, SUV, car, and LS swap combinations where HP Tuners support applies\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"jrj-tune-card\"\u003e\n\u003ch3\u003eWhat This Tune Covers\u003c\/h3\u003e\n\u003cul class=\"jrj-tune-list\"\u003e\n\u003cli\u003eStartup, idle, airflow, fueling, spark, and drivability calibration\u003c\/li\u003e\n\u003cli\u003eCammed idle control for cleaner starts and less stalling\u003c\/li\u003e\n\u003cli\u003eThrottle response and part-throttle drivability\u003c\/li\u003e\n\u003cli\u003eTransmission tuning support where applicable\u003c\/li\u003e\n\u003cli\u003eCommon bolt-ons including headers, intake, exhaust, converter, injectors, and manifold swaps\u003c\/li\u003e\n\u003cli\u003eReal revision support through feedback, logs, and communication\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"jrj-video-row\"\u003e\n\u003cdiv class=\"jrj-short-video\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/UAvAhD04Uwc\" title=\"1998-2006 Chopacabra Cam Tune Short\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003cdiv class=\"jrj-wide-video\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/4Asty8NNCqM\" title=\"HP Tuners File Help\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"jrj-tune-card full\"\u003e\n\u003ch3\u003eCompatible GM LS Vehicles\u003c\/h3\u003e\n\u003cp\u003eThese vehicles are commonly supported in the 1998-2006 GM LS tuning family when equipped with supported 4.8L, 5.3L, 5.7L, or 6.0L combinations.\u003c\/p\u003e\n\u003cul class=\"jrj-tune-list\"\u003e\n\u003cli\u003e1999-2006 Chevrolet Silverado 1500\u003c\/li\u003e\n\u003cli\u003e1999-2006 GMC Sierra 1500\u003c\/li\u003e\n\u003cli\u003e1999-2006 Chevrolet Silverado 2500 \/ 3500 gas LS applications\u003c\/li\u003e\n\u003cli\u003e1999-2006 GMC Sierra 2500 \/ 3500 gas LS applications\u003c\/li\u003e\n\u003cli\u003e2000-2006 Chevrolet Tahoe\u003c\/li\u003e\n\u003cli\u003e2000-2006 GMC Yukon\u003c\/li\u003e\n\u003cli\u003e2000-2006 Chevrolet Suburban\u003c\/li\u003e\n\u003cli\u003e2000-2006 GMC Yukon XL\u003c\/li\u003e\n\u003cli\u003e2002-2006 Cadillac Escalade \/ ESV \/ EXT\u003c\/li\u003e\n\u003cli\u003e2002-2006 Chevrolet Avalanche\u003c\/li\u003e\n\u003cli\u003e1998-2002 Chevrolet Camaro LS1\u003c\/li\u003e\n\u003cli\u003e1998-2002 Pontiac Firebird \/ Trans Am LS1\u003c\/li\u003e\n\u003cli\u003e1997-2006 Chevrolet Corvette LS applications\u003c\/li\u003e\n\u003cli\u003e2004-2006 Pontiac GTO\u003c\/li\u003e\n\u003cli\u003e2004-2006 Cadillac CTS-V\u003c\/li\u003e\n\u003cli\u003e2006 Chevrolet TrailBlazer SS\u003c\/li\u003e\n\u003cli\u003eOther 1998-2006 LS swap or LS-based applications using HP Tuners support\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"jrj-tune-card\"\u003e\n\u003ch3\u003eEngine Coverage\u003c\/h3\u003e\n\u003cul class=\"jrj-tune-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003e4.8L LR4\u003c\/strong\u003e Gen III LS truck engine\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5.3L LM7 \/ L59\u003c\/strong\u003e Gen III LS truck engines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5.7L LS1\u003c\/strong\u003e F-body, Corvette, and GTO applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5.7L LS6\u003c\/strong\u003e Corvette Z06 and CTS-V applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e6.0L LQ4 \/ LQ9\u003c\/strong\u003e Gen III truck and SUV engines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e6.0L LS2\u003c\/strong\u003e GTO, Corvette, CTS-V, and TrailBlazer SS support where applicable\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"jrj-tune-card\"\u003e\n\u003ch3\u003eWhat We Need From You\u003c\/h3\u003e\n\u003cul class=\"jrj-tune-list\"\u003e\n\u003cli\u003eEmail your HP Tuners factory read file to \u003ca href=\"mailto:Tunes@jrjonesracing.com\"\u003eTunes@JRJonesRacing.com\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eInclude your order number\u003c\/li\u003e\n\u003cli\u003eInclude year, make, model, engine size, and transmission\u003c\/li\u003e\n\u003cli\u003eList your cam, headers, intake, injectors, converter, gear ratio, tire size, and exhaust\u003c\/li\u003e\n\u003cli\u003eSend your cam card or cam specs if available\u003c\/li\u003e\n\u003cli\u003eTell us any current issues: stalling, surging, rich idle, lean codes, shift problems, etc.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"jrj-tune-card\"\u003e\n\u003ch3\u003eGood For\u003c\/h3\u003e\n\u003cul class=\"jrj-tune-list\"\u003e\n\u003cli\u003e1998-2006 GM LS cam swaps\u003c\/li\u003e\n\u003cli\u003eSilverado and Sierra 4.8L \/ 5.3L \/ 6.0L builds\u003c\/li\u003e\n\u003cli\u003eTahoe, Yukon, Suburban, Avalanche, Escalade, and TrailBlazer SS builds\u003c\/li\u003e\n\u003cli\u003eCammed Camaro, Firebird, Corvette, GTO, and CTS-V LS combinations\u003c\/li\u003e\n\u003cli\u003eTexas Speed Chopacabra cam setups\u003c\/li\u003e\n\u003cli\u003eSimilar LS cam combinations\u003c\/li\u003e\n\u003cli\u003eHeaders, intake, exhaust, converter, and street performance builds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"jrj-tune-card\"\u003e\n\u003ch3\u003eNot For\u003c\/h3\u003e\n\u003cul class=\"jrj-tune-list\"\u003e\n\u003cli\u003e2007+ GM trucks\u003c\/li\u003e\n\u003cli\u003eGen V LT engines\u003c\/li\u003e\n\u003cli\u003eDiesel trucks\u003c\/li\u003e\n\u003cli\u003eVehicles with mechanical problems\u003c\/li\u003e\n\u003cli\u003eBoosted or nitrous setups unless custom details are provided\u003c\/li\u003e\n\u003cli\u003eCustomers unable to read and flash their own file\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"jrj-warning\"\u003e\n\u003ch3\u003ePerformance \u0026amp; Build Responsibility Notice\u003c\/h3\u003e\n\u003cp\u003eThis is a performance calibration designed for modified GM LS vehicles running a camshaft and supporting parts.\u003c\/p\u003e\n\u003cp\u003eYou are responsible for making sure your build quality is up to par before flashing or running this tune. Your engine, valvetrain, fuel system, drivetrain, wiring, sensors, injectors, exhaust, and all supporting parts must be correctly installed, mechanically sound, and capable of handling increased performance.\u003c\/p\u003e\n\u003cp\u003ePoor installation, worn parts, incorrect valve spring setup, wrong pushrod length, weak fuel supply, vacuum leaks, exhaust leaks, bad sensors, or unsafe mechanical condition can cause drivability issues or engine damage that no tune can fix.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eJ.R. Jones Automotive \u0026amp; Performance is not liable\u003c\/strong\u003e for engine failure, drivetrain damage, PCM\/ECU damage, or any issue caused by poor build quality, improper installation, unsafe flashing practices, incorrect customer-supplied information, or misuse of this tune.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"jrj-warning\"\u003e\n\u003ch3\u003eFlashing Safety Notice\u003c\/h3\u003e\n\u003cp\u003eAlways flash using a hard-wired USB connection. Do not flash over weak connections, unstable power, or while the vehicle battery is low.\u003c\/p\u003e\n\u003cp\u003eUse a battery charger or maintainer during the write process. Do not interrupt the flash once writing has started.\u003c\/p\u003e\n\u003cp\u003eCustomer is responsible for having the proper tuning hardware, software, licensing, and stable equipment needed to read and flash the vehicle.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"jrj-mini-builder\"\u003e\n\u003cdiv class=\"jrj-mini-inner\"\u003e\n\u003cdiv class=\"jrj-mini-eye\"\u003eBuild Your Exact Tune\u003c\/div\u003e\n\u003ch3\u003eNeed Help Matching Your Vehicle?\u003c\/h3\u003e\n\u003cp\u003eIf your Silverado, Sierra, Tahoe, Yukon, Suburban, Avalanche, Escalade, Camaro, Firebird, Corvette, GTO, CTS-V, or TrailBlazer SS has injectors, converter changes, gear\/tire changes, boost, nitrous, or anything beyond a normal Chopacabra cam setup, use the Build Your Tune page so we can match the calibration to your exact vehicle.\u003c\/p\u003e\n\u003cdiv class=\"jrj-mini-grid\"\u003e\n\u003cdiv class=\"jrj-mini-card\"\u003eSilverado\u003c\/div\u003e\n\u003cdiv class=\"jrj-mini-card\"\u003eSierra\u003c\/div\u003e\n\u003cdiv class=\"jrj-mini-card\"\u003eTahoe\u003c\/div\u003e\n\u003cdiv class=\"jrj-mini-card\"\u003eYukon\u003c\/div\u003e\n\u003cdiv class=\"jrj-mini-card\"\u003eSuburban\u003c\/div\u003e\n\u003cdiv class=\"jrj-mini-card\"\u003eEscalade\u003c\/div\u003e\n\u003cdiv class=\"jrj-mini-card\"\u003eCamaro\u003c\/div\u003e\n\u003cdiv class=\"jrj-mini-card\"\u003eFirebird\u003c\/div\u003e\n\u003cdiv class=\"jrj-mini-card\"\u003eCorvette\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"jrj-mini-cta\"\u003e\n\u003ca href=\"\/pages\/build-your-tune\" class=\"jrj-mini-btn jrj-mini-btn-primary\"\u003eBuild Your Tune -\u0026gt;\u003c\/a\u003e \u003ca href=\"sms:+19102315505\" class=\"jrj-mini-btn jrj-mini-btn-secondary\"\u003eText Jason\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003cp\u003e```\u003c\/p\u003e","brand":"J.R. Jones Racing","offers":[{"title":"Cam Only Tune","offer_id":43166499668035,"sku":null,"price":249.99,"currency_code":"USD","in_stock":true},{"title":"W\/ Long Tube Header","offer_id":43166083907651,"sku":null,"price":269.99,"currency_code":"USD","in_stock":true},{"title":"W\/ TQ Converter","offer_id":43166083940419,"sku":null,"price":269.99,"currency_code":"USD","in_stock":true},{"title":"W\/ Long Tube Headers and TQ Converter","offer_id":43166091804739,"sku":null,"price":279.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0659\/1964\/7811\/files\/98-06Chopacbara.png?v=1776708841"},{"product_id":"truck-norris-cam-tune-1998-2006-gm-ls-btr","title":"Truck Norris Cam Tune File 5.3 4.8 6.0 | 1998–2006 Silverado Sierra | HP Tuners \/ EFI Live","description":"\u003cp\u003e\u003clink rel=\"preconnect\" href=\"https:\/\/fonts.googleapis.com\"\u003e \u003clink href=\"https:\/\/fonts.googleapis.com\/css2?family=Barlow+Condensed:wght@700;900\u0026amp;family=Barlow:wght@400;500;600;700\u0026amp;display=swap\" rel=\"stylesheet\"\u003e\u003c\/p\u003e\n\n\u003cstyle\u003e\n#jrj-pd {\n  --orange: #FF5A00;\n  --bg: #111318;\n  --panel: #16191F;\n  --panel-2: #1A1E26;\n  --border: rgba(255,255,255,.09);\n  --border-strong: rgba(255,90,0,.22);\n  --text: #E8EDF2;\n  --muted: #8B94A3;\n  --shadow: 0 16px 38px rgba(0,0,0,.22);\n  font-family: 'Barlow', sans-serif;\n  background:\n    radial-gradient(circle at top left, rgba(255,90,0,.05), transparent 28%),\n    linear-gradient(180deg, #111318 0%, #0f1217 100%);\n  color: var(--text);\n  font-size: 16px;\n  line-height: 1.65;\n  padding: 48px 24px;\n  border-radius: 18px;\n}\n#jrj-pd * { box-sizing: border-box; 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color: var(--muted); line-height: 1.75; flex: 1 1 420px;\n}\n.pd-video-cta strong { color: #fff; font-size: 17px; }\n.pd-btn {\n  display: inline-flex; align-items: center; gap: 10px;\n  font-family: 'Barlow Condensed', sans-serif;\n  font-weight: 700; font-size: 17px; letter-spacing: .6px;\n  text-transform: uppercase;\n  background: linear-gradient(135deg, #FF5A00 0%, #ff7a1a 100%);\n  color: #fff !important;\n  padding: 15px 28px;\n  border-radius: 12px;\n  white-space: nowrap;\n  box-shadow: 0 10px 24px rgba(255,90,0,.24);\n  transition: filter .15s ease, transform .15s ease;\n  flex-shrink: 0;\n}\n.pd-btn:hover {\n  filter: brightness(1.08); transform: translateY(-1px); text-decoration: none !important;\n}\n@media (max-width: 768px) {\n  #jrj-pd { padding: 36px 18px; }\n  .pd-grid, .pd-variants, .pd-vehicle-grid { grid-template-columns: 1fr; }\n  .pd-box, .pd-warning, .pd-video-cta, .pd-variant { padding: 22px 20px; }\n  .pd-summary { padding: 20px; font-size: 18px; }\n  .pd-vehicle-grid { padding: 18px 20px 22px; }\n}\n\u003c\/style\u003e\n\n\u003cdiv id=\"jrj-pd\"\u003e\n  \u003cdiv class=\"pd-wrap\"\u003e\n\n    \u003cdiv class=\"pd-eyebrow\"\u003eTruck Norris Cam Tune File\u003c\/div\u003e\n\n    \u003ch2 class=\"pd-title\"\u003eBTR Truck Norris Cam Tune File 5.3 4.8 6.0 LS | 1998-2006 Silverado Sierra | HP Tuners \/ EFI Live\u003c\/h2\u003e\n\n    \u003cp class=\"pd-keywords\"\u003e\n      \u003cstrong\u003ePopular searches:\u003c\/strong\u003e 5.3 Truck Norris tune • 4.8 Truck Norris tune • 6.0 Truck Norris tune • BTR Truck Norris cam tune • Silverado Truck Norris tune file\n    \u003c\/p\u003e\n\n    \u003cp class=\"pd-lead\"\u003e\n      \u003cstrong\u003eBTR Truck Norris cam tune file for 5.3, 4.8, and 6.0 LS engines\u003c\/strong\u003e designed for \u003cstrong\u003e1998-2006 Chevy Silverado and GMC Sierra\u003c\/strong\u003e trucks running Gen III LS combinations. This pre-written performance tune is built specifically for Truck Norris camshaft setups to help deliver the aggressive lopey idle, improved startup, smoother drivability, better throttle response, and stronger street manners these builds demand. Requires \u003cstrong\u003eHP Tuners or EFI Live\u003c\/strong\u003e. Send in your stock read file and full mod list, and we will build your tune around your exact setup.\n    \u003c\/p\u003e\n\n    \u003cdiv class=\"pd-variants\"\u003e\n      \u003cdiv class=\"pd-variant\"\u003e\n        \u003cdiv class=\"pd-variant-icon\"\u003e🛻\u003c\/div\u003e\n        \u003cdiv\u003e\n          \u003cb\u003eBTR Truck Norris Cam Tune\u003c\/b\u003e\n          \u003cspan\u003eBuilt specifically for Truck Norris cam setups needing proper idle control, startup tuning, fueling changes, and better street drivability.\u003c\/span\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"pd-variant\"\u003e\n        \u003cdiv class=\"pd-variant-icon\"\u003e⚡\u003c\/div\u003e\n        \u003cdiv\u003e\n          \u003cb\u003ePre-Written Performance File\u003c\/b\u003e\n          \u003cspan\u003eDesigned around real-world 1998-2006 GM truck combinations with common supporting mods like headers, intake upgrades, injectors, and converters.\u003c\/span\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"pd-grid\"\u003e\n      \u003cdiv class=\"pd-box\"\u003e\n        \u003ch4\u003eBuilt Specifically For\u003c\/h4\u003e\n        \u003cul class=\"pd-list\"\u003e\n          \u003cli\u003e\n\u003cstrong\u003eBTR Truck Norris camshaft\u003c\/strong\u003e setups\u003c\/li\u003e\n          \u003cli\u003e\n\u003cstrong\u003e1998-2006 Chevy Silverado and GMC Sierra\u003c\/strong\u003e platforms\u003c\/li\u003e\n          \u003cli\u003e\u003cstrong\u003e4.8L, 5.3L, and 6.0L LS truck combinations\u003c\/strong\u003e\u003c\/li\u003e\n          \u003cli\u003eStreet-driven builds wanting a strong lopey idle and better drivability\u003c\/li\u003e\n          \u003cli\u003eCommon supporting mods like headers, intake upgrades, injectors, converter changes, gear ratio changes, and tire size changes\u003c\/li\u003e\n        \u003c\/ul\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"pd-box\"\u003e\n        \u003ch4\u003eWhat's Included\u003c\/h4\u003e\n        \u003cul class=\"pd-list\"\u003e\n          \u003cli\u003e\u003cstrong\u003eCold start and hot start improvements\u003c\/strong\u003e\u003c\/li\u003e\n          \u003cli\u003e\n\u003cstrong\u003eIdle airflow, fueling, and spark adjustments\u003c\/strong\u003e for Truck Norris cam behavior\u003c\/li\u003e\n          \u003cli\u003e\n\u003cstrong\u003eSmoother throttle response\u003c\/strong\u003e and better street drivability\u003c\/li\u003e\n          \u003cli\u003eAdjustments based on your submitted stock read file and full mod list\u003c\/li\u003e\n          \u003cli\u003eUp to \u003cstrong\u003e3 revisions\u003c\/strong\u003e if your combination needs follow-up changes\u003c\/li\u003e\n          \u003cli\u003eRequires \u003cstrong\u003eHP Tuners or EFI Live\u003c\/strong\u003e hardware\/software for flashing\u003c\/li\u003e\n        \u003c\/ul\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"margin-bottom: 16px;\" class=\"pd-box\"\u003e\n      \u003ch4\u003eHow It Works - Read File Required\u003c\/h4\u003e\n      \u003cul class=\"pd-list\"\u003e\n        \u003cli\u003eAfter purchase, \u003cstrong\u003eemail your factory read file\u003c\/strong\u003e to \u003ca href=\"mailto:tunes@jrjonesracing.com\"\u003etunes@jrjonesracing.com\u003c\/a\u003e\n\u003c\/li\u003e\n        \u003cli\u003eInclude your \u003cstrong\u003eorder number and full mod list\u003c\/strong\u003e - cam, injectors, headers, intake, converter, gear ratio, tire size, and anything else relevant\u003c\/li\u003e\n        \u003cli\u003eYour file is built from your stock read file so it matches your vehicle and operating system\u003c\/li\u003e\n        \u003cli\u003eMost tune files are returned quickly, but revised files may take up to \u003cstrong\u003e24 hours\u003c\/strong\u003e depending on workload\u003c\/li\u003e\n        \u003cli\u003eYou receive your tuned file by email, ready to flash with HP Tuners or EFI Live\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"pd-warning\"\u003e\n      \u003ch4\u003eFlashing \u0026amp; Safety Notice\u003c\/h4\u003e\n      \u003cp\u003eFlashing your PCM can be \u003cstrong\u003edangerous if not done properly\u003c\/strong\u003e. Follow these steps to help avoid PCM or ECU damage:\u003c\/p\u003e\n      \u003cul style=\"margin-bottom: 10px;\" class=\"pd-list\"\u003e\n        \u003cli\u003e\n\u003cstrong\u003eNever flash over Bluetooth or Wi-Fi\u003c\/strong\u003e - always use a hard-wired connection\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eConnect a battery charger\u003c\/strong\u003e to maintain stable voltage during the write process\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eDo not interrupt\u003c\/strong\u003e the flashing process once writing has started\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003e\u003cstrong\u003eJ.R. Jones Automotive \u0026amp; Performance\u003c\/strong\u003e is not liable for any PCM or ECU damage caused by improper flashing, unstable voltage, incorrect file use, or unsafe tuning practices.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdetails class=\"pd-details\"\u003e\n      \u003csummary class=\"pd-summary\"\u003e\n        \u003cspan\u003eCompatible Vehicles - 1998-2006 Silverado \/ Sierra Platforms\u003c\/span\u003e\n        \u003cspan class=\"pd-chevron\"\u003e›\u003c\/span\u003e\n      \u003c\/summary\u003e\n      \u003cul class=\"pd-vehicle-grid\"\u003e\n        \u003cli\u003e1999-2006 Chevrolet Silverado 1500 4.8L \/ 5.3L \/ 6.0L\u003c\/li\u003e\n        \u003cli\u003e1999-2006 GMC Sierra 1500 4.8L \/ 5.3L \/ 6.0L\u003c\/li\u003e\n        \u003cli\u003e1999-2006 Chevrolet Silverado 2500 \/ 2500HD 6.0L\u003c\/li\u003e\n        \u003cli\u003e1999-2006 GMC Sierra 2500 \/ 2500HD 6.0L\u003c\/li\u003e\n        \u003cli\u003e1999-2006 Chevrolet Silverado 3500 6.0L\u003c\/li\u003e\n        \u003cli\u003e1999-2006 GMC Sierra 3500 6.0L\u003c\/li\u003e\n        \u003cli\u003e2000-2006 Chevrolet Tahoe 4.8L \/ 5.3L \/ 6.0L\u003c\/li\u003e\n        \u003cli\u003e2000-2006 GMC Yukon 4.8L \/ 5.3L \/ 6.0L\u003c\/li\u003e\n        \u003cli\u003e2000-2006 Chevrolet Suburban 5.3L \/ 6.0L\u003c\/li\u003e\n        \u003cli\u003e2000-2006 GMC Yukon XL 5.3L \/ 6.0L\u003c\/li\u003e\n        \u003cli\u003e2002-2006 Cadillac Escalade 6.0L\u003c\/li\u003e\n        \u003cli\u003e2003-2006 Chevrolet Avalanche 5.3L\u003c\/li\u003e\n        \u003cli\u003e2003-2006 Cadillac Escalade EXT 6.0L\u003c\/li\u003e\n        \u003cli\u003eOther 1998-2006 GM truck applications using HP Tuners or EFI Live\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/details\u003e\n\n    \u003cdiv class=\"pd-box\" style=\"margin-bottom: 16px;\"\u003e\n      \u003ch4\u003eImportant Notes\u003c\/h4\u003e\n      \u003cul class=\"pd-list\"\u003e\n        \u003cli\u003eThis tune is for \u003cstrong\u003eBTR Truck Norris camshaft\u003c\/strong\u003e setups.\u003c\/li\u003e\n        \u003cli\u003eThis is not a universal canned flash. Your file is adjusted using your stock read and modification list.\u003c\/li\u003e\n        \u003cli\u003eYou must already have, or purchase, \u003cstrong\u003eHP Tuners or EFI Live\u003c\/strong\u003e to read, flash, and write the tune file.\u003c\/li\u003e\n        \u003cli\u003eFor best results, include every modification on the vehicle before the tune file is built.\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"pd-video-cta\"\u003e\n      \u003cp\u003e\u003cstrong\u003eNeed help sending your tune file?\u003c\/strong\u003e\u003cbr\u003eWatch our step-by-step video on how to read your stock file using HP Tuners and email it for calibration.\u003c\/p\u003e\n      \u003ca href=\"https:\/\/youtu.be\/4Asty8NNCqM\" class=\"pd-btn\" rel=\"noopener\" target=\"_blank\"\u003e▶ Watch How-To Video\u003c\/a\u003e\n    \u003c\/div\u003e\n\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"J.R. Jones Racing","offers":[{"title":"Cam Only Tune","offer_id":43166498029635,"sku":null,"price":249.99,"currency_code":"USD","in_stock":true},{"title":"W\/ Long Tube Headers","offer_id":43166122704963,"sku":null,"price":269.99,"currency_code":"USD","in_stock":true},{"title":"W\/ TQ Converter","offer_id":43166122737731,"sku":null,"price":269.99,"currency_code":"USD","in_stock":true},{"title":"W\/ Long Tube Headers and TQ Converter","offer_id":43166122770499,"sku":null,"price":279.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0659\/1964\/7811\/files\/98-06BTR.png?v=1776710540"}],"url":"https:\/\/jrjonesracing.com\/collections\/1998-2006-gm-ls-tune-files.oembed","provider":"J.R. Jones Racing","version":"1.0","type":"link"}