{"title":"Speed Engineering","description":"","products":[{"product_id":"speed-engineering-shorty-headers-1999-2013-silverado-sierra-ls-truck-headers","title":"Speed Engineering Shorty Headers – 1999–2013 Silverado Sierra LS Truck Headers","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-pd {\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\n#jrj-pd * { box-sizing: border-box; margin: 0; padding: 0; }\n#jrj-pd a { color: #FF5A00; text-decoration: none; }\n#jrj-pd a:hover { text-decoration: underline; }\n\n.pd-wrap {\n  max-width: 960px;\n  margin: 0 auto;\n}\n\n.pd-eyebrow {\n  display: inline-flex;\n  align-items: center;\n  gap: 10px;\n  font-family: 'Barlow Condensed', sans-serif;\n  font-size: 14px;\n  font-weight: 900;\n  letter-spacing: 2.5px;\n  text-transform: uppercase;\n  color: #FF5A00;\n  margin-bottom: 16px;\n}\n\n.pd-eyebrow::before {\n  content: '';\n  display: block;\n  width: 24px;\n  height: 3px;\n  background: #FF5A00;\n  border-radius: 2px;\n}\n\n.pd-title {\n  font-family: 'Barlow Condensed', sans-serif;\n  font-weight: 900;\n  font-size: 48px;\n  text-transform: uppercase;\n  color: #fff;\n  line-height: 1;\n  letter-spacing: -.3px;\n  margin-bottom: 16px;\n}\n\n.pd-lead {\n  font-size: 17px;\n  color: #8B94A3;\n  max-width: 860px;\n  margin-bottom: 32px;\n  line-height: 1.75;\n}\n\n.pd-lead strong { color: #E8EDF2; }\n\n.pd-grid {\n  display: grid;\n  grid-template-columns: 1fr 1fr;\n  gap: 16px;\n  margin-bottom: 16px;\n}\n\n@media (max-width: 640px) {\n  .pd-grid { grid-template-columns: 1fr; }\n  .pd-title { font-size: 36px; }\n}\n\n.pd-box {\n  background: #16191F;\n  border: 1px solid rgba(255,255,255,.09);\n  border-radius: 16px;\n  padding: 28px;\n}\n\n.pd-box h4 {\n  font-family: 'Barlow Condensed', sans-serif;\n  font-weight: 900;\n  font-size: 20px;\n  text-transform: uppercase;\n  letter-spacing: .5px;\n  color: #fff;\n  margin-bottom: 18px;\n  display: flex;\n  align-items: center;\n  gap: 10px;\n}\n\n.pd-box h4::before {\n  content: '';\n  display: block;\n  width: 4px;\n  height: 20px;\n  background: #FF5A00;\n  border-radius: 2px;\n  flex-shrink: 0;\n}\n\n.pd-list {\n  list-style: none;\n  display: flex;\n  flex-direction: column;\n  gap: 12px;\n}\n\n.pd-list li {\n  font-size: 16px;\n  color: #8B94A3;\n  padding-left: 0;\n  position: relative;\n  line-height: 1.6;\n}\n\n.pd-list li::before {\n  content: none;\n}\n\n.pd-list li strong { color: #E8EDF2; 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}\n.pd-warning strong { color: #E8EDF2; }\n\n.pd-details {\n  background: #16191F;\n  border: 1px solid rgba(255,255,255,.09);\n  border-radius: 16px;\n  overflow: hidden;\n  margin-bottom: 16px;\n}\n\n.pd-details[open] { border-color: rgba(255,90,0,.3); }\n\n.pd-summary {\n  cursor: pointer;\n  list-style: none;\n  display: flex;\n  align-items: center;\n  justify-content: space-between;\n  gap: 12px;\n  padding: 22px 28px;\n  font-family: 'Barlow Condensed', sans-serif;\n  font-weight: 900;\n  font-size: 20px;\n  text-transform: uppercase;\n  letter-spacing: .5px;\n  color: #fff;\n  user-select: none;\n}\n\n.pd-summary::-webkit-details-marker { display: none; }\n\n.pd-chevron {\n  color: #FF5A00;\n  font-size: 24px;\n  font-weight: 900;\n  transition: transform .2s;\n  flex-shrink: 0;\n}\n\n.pd-details[open] .pd-chevron { transform: rotate(90deg); }\n\n.pd-vehicle-grid {\n  display: grid;\n  grid-template-columns: 1fr 1fr;\n  gap: 10px 32px;\n  padding: 20px 28px 28px;\n  border-top: 1px solid rgba(255,255,255,.09);\n}\n\n@media (max-width: 640px) {\n  .pd-vehicle-grid { grid-template-columns: 1fr; }\n}\n\n.pd-vehicle-grid li {\n  font-size: 15px;\n  color: #8B94A3;\n  list-style: none;\n  padding-left: 0;\n  position: relative;\n  line-height: 1.6;\n}\n\n.pd-vehicle-grid li::before {\n  content: none;\n}\n\n.pd-video-cta {\n  background: #16191F;\n  border: 1px solid rgba(255,255,255,.09);\n  border-radius: 16px;\n  padding: 28px;\n}\n\n.pd-video-cta p {\n  font-size: 16px;\n  color: #8B94A3;\n  line-height: 1.7;\n}\n\n.pd-video-cta strong { color: #fff; font-size: 17px; }\n\u003c\/style\u003e\n\u003cdiv id=\"jrj-pd\"\u003e\n\u003cdiv class=\"pd-wrap\"\u003e\n\u003cdiv class=\"pd-eyebrow\"\u003eSpeed Engineering Headers\u003c\/div\u003e\n\u003ch2 class=\"pd-title\"\u003eShorty Headers\u003c\/h2\u003e\n\u003cp class=\"pd-lead\"\u003eThese \u003cstrong\u003eSpeed Engineering shorty headers\u003c\/strong\u003e are designed for \u003cstrong\u003e1999-2013 GM trucks and SUVs\u003c\/strong\u003e, offering improved exhaust flow, better performance, and excellent fitment while retaining compatibility with \u003cstrong\u003efactory-style exhaust systems\u003c\/strong\u003e. Built from durable \u003cstrong\u003e304 stainless steel\u003c\/strong\u003e, these headers are a great upgrade for daily-driven street builds looking for increased power without the complexity of longtube headers.\u003c\/p\u003e\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\u003eFactory-Style Fitment\u003c\/b\u003e \u003cspan\u003eDesigned to improve exhaust flow while maintaining compatibility with factory single exhaust Y-pipe systems.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pd-variant\"\u003e\n\u003cdiv class=\"pd-variant-icon\"\u003e💨\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eStreet Performance Upgrade\u003c\/b\u003e \u003cspan\u003eA strong option for daily-driven LS truck and SUV builds wanting more power and sound with simpler installation.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pd-grid\"\u003e\n\u003cdiv class=\"pd-box\"\u003e\n\u003ch4\u003ePart Number\u003c\/h4\u003e\n\u003cul class=\"pd-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpeed Engineering:\u003c\/strong\u003e SPD-SHORTY-LS (Reference)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pd-box\"\u003e\n\u003ch4\u003eProduct Features\u003c\/h4\u003e\n\u003cul class=\"pd-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 5\/8\"\u003c\/strong\u003e mandrel-bent primary tubes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2 1\/2\"\u003c\/strong\u003e collectors for improved flow\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e304 stainless steel\u003c\/strong\u003e construction\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTIG welded\u003c\/strong\u003e for strength and durability\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCNC machined flanges\u003c\/strong\u003e for precise fitment\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRace version\u003c\/strong\u003e with no AIR or EGR provisions\u003c\/li\u003e\n\u003cli\u003eIncludes standard \u003cstrong\u003egraphite manifold gaskets\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pd-grid\"\u003e\n\u003cdiv class=\"pd-box\"\u003e\n\u003ch4\u003eEngine Compatibility\u003c\/h4\u003e\n\u003cul class=\"pd-list\"\u003e\n\u003cli\u003eFits \u003cstrong\u003eGM LS-based V8 engines\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e4.8L\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e5.3L\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e6.0L\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e6.2L\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pd-box\"\u003e\n\u003ch4\u003eVehicle Compatibility\u003c\/h4\u003e\n\u003cul class=\"pd-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003e1999-2006 Chevrolet Truck \u0026amp; SUV\u003c\/strong\u003e 2WD \u0026amp; 4WD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2007-2013 Chevrolet Truck \u0026amp; SUV\u003c\/strong\u003e 2WD \u0026amp; 4WD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1999-2006 GMC Truck \u0026amp; SUV\u003c\/strong\u003e 2WD \u0026amp; 4WD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2007-2013 GMC Truck \u0026amp; SUV\u003c\/strong\u003e 2WD \u0026amp; 4WD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2007-2013 Cadillac Truck \u0026amp; SUV\u003c\/strong\u003e AWD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2001-2006 Chevrolet Avalanche\u003c\/strong\u003e 2WD \u0026amp; 4WD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2007-2013 Chevrolet Avalanche\u003c\/strong\u003e 2WD \u0026amp; 4WD\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pd-grid\"\u003e\n\u003cdiv class=\"pd-box\"\u003e\n\u003ch4\u003eCommon Applications\u003c\/h4\u003e\n\u003cul class=\"pd-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eStreet performance\u003c\/strong\u003e builds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStock or mild camshaft\u003c\/strong\u003e setups\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDOD\/AFM delete\u003c\/strong\u003e builds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFactory exhaust system\u003c\/strong\u003e upgrades\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pd-box\"\u003e\n\u003ch4\u003ePerformance Benefits\u003c\/h4\u003e\n\u003cul class=\"pd-list\"\u003e\n\u003cli\u003eGain of \u003cstrong\u003e12+ rear wheel horsepower\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eImproved \u003cstrong\u003eexhaust flow\u003c\/strong\u003e over factory manifolds\u003c\/li\u003e\n\u003cli\u003eBetter \u003cstrong\u003ethrottle response\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eMaintains compatibility with \u003cstrong\u003efactory-style exhaust\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pd-warning\"\u003e\n\u003ch4\u003eImportant Fitment Notes\u003c\/h4\u003e\n\u003cp\u003eThese headers are designed for \u003cstrong\u003eV8 applications only\u003c\/strong\u003e and are intended to work with factory-style single exhaust systems.\u003c\/p\u003e\n\u003cul style=\"margin-bottom: 10px;\" class=\"pd-list\"\u003e\n\u003cli\u003e\u003cstrong\u003eDesigned for V8 applications only\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eWorks with \u003cstrong\u003efactory single exhaust (Y-pipe) systems\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eTested primarily on \u003cstrong\u003e1\/2 ton applications\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTuning recommended\u003c\/strong\u003e for best performance gains\u003c\/li\u003e\n\u003cli\u003eVerify \u003cstrong\u003efitment\u003c\/strong\u003e before installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFor off-road and competition use only.\u003c\/strong\u003e Not legal for use on public roads or emissions-controlled vehicles.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdetails class=\"pd-details\"\u003e\n\u003csummary class=\"pd-summary\"\u003e\u003cspan\u003eInstallation Notes\u003c\/span\u003e \u003cspan class=\"pd-chevron\"\u003e›\u003c\/span\u003e\u003c\/summary\u003e\n\u003cul class=\"pd-vehicle-grid\"\u003e\n\u003cli\u003eProfessional installation recommended\u003c\/li\u003e\n\u003cli\u003eExcellent option for daily-driven truck and SUV builds\u003c\/li\u003e\n\u003cli\u003eSimpler install than longtube headers\u003c\/li\u003e\n\u003cli\u003eBest used when retaining factory-style exhaust layout\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/details\u003e\n\u003cdiv class=\"pd-video-cta\"\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e\u003cbr\u003eShorty headers are a \u003cstrong\u003egreat option for improving performance\u003c\/strong\u003e while keeping a simpler install and factory-style exhaust compatibility. Ideal for daily-driven trucks and SUVs looking for a \u003cstrong\u003enoticeable upgrade without major modifications\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"J.R. Jones Racing","offers":[{"title":"Headers Only","offer_id":43120269197379,"sku":null,"price":239.99,"currency_code":"USD","in_stock":true},{"title":"With LS MLS Exhaust Gaskets","offer_id":43120269230147,"sku":null,"price":279.99,"currency_code":"USD","in_stock":true},{"title":"With Header Bolts","offer_id":43120269262915,"sku":null,"price":249.99,"currency_code":"USD","in_stock":true},{"title":"With All Extras","offer_id":43120269295683,"sku":null,"price":289.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0659\/1964\/7811\/files\/25-1016SilveradoSierraTahoeYukonShortHeaders_720x_863a6c86-26b1-407e-8a17-f4990d26fceb.webp?v=1775497346"},{"product_id":"speed-engineering-1-3-4-longtube-headers-1999-2006-silverado-sierra-ls-truck-headers-copy-1","title":"Speed Engineering 1 3\/4\" Longtube Headers – 2007–2013 Silverado Sierra LS Trucks","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-pd {\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\n#jrj-pd * { box-sizing: border-box; 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}\n  .pd-title { font-size: 36px; }\n}\n\n.pd-box {\n  background: #16191F;\n  border: 1px solid rgba(255,255,255,.09);\n  border-radius: 16px;\n  padding: 28px;\n}\n\n.pd-box h4 {\n  font-family: 'Barlow Condensed', sans-serif;\n  font-weight: 900;\n  font-size: 20px;\n  text-transform: uppercase;\n  letter-spacing: .5px;\n  color: #fff;\n  margin-bottom: 18px;\n  display: flex;\n  align-items: center;\n  gap: 10px;\n}\n\n.pd-box h4::before {\n  content: '';\n  display: block;\n  width: 4px;\n  height: 20px;\n  background: #FF5A00;\n  border-radius: 2px;\n  flex-shrink: 0;\n}\n\n.pd-list {\n  list-style: none;\n  display: flex;\n  flex-direction: column;\n  gap: 12px;\n}\n\n.pd-list li {\n  font-size: 16px;\n  color: #8B94A3;\n  padding-left: 0;\n  position: relative;\n  line-height: 1.6;\n}\n\n.pd-list li::before {\n  content: none;\n}\n\n.pd-list li strong { color: #E8EDF2; }\n\n.pd-variants {\n  display: grid;\n  grid-template-columns: 1fr 1fr;\n  gap: 14px;\n  margin-bottom: 16px;\n}\n\n@media (max-width: 640px) {\n  .pd-variants { grid-template-columns: 1fr; 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}\n.pd-warning strong { color: #E8EDF2; }\n\n.pd-details {\n  background: #16191F;\n  border: 1px solid rgba(255,255,255,.09);\n  border-radius: 16px;\n  overflow: hidden;\n  margin-bottom: 16px;\n}\n\n.pd-details[open] { border-color: rgba(255,90,0,.3); }\n\n.pd-summary {\n  cursor: pointer;\n  list-style: none;\n  display: flex;\n  align-items: center;\n  justify-content: space-between;\n  gap: 12px;\n  padding: 22px 28px;\n  font-family: 'Barlow Condensed', sans-serif;\n  font-weight: 900;\n  font-size: 20px;\n  text-transform: uppercase;\n  letter-spacing: .5px;\n  color: #fff;\n  user-select: none;\n}\n\n.pd-summary::-webkit-details-marker { display: none; }\n\n.pd-chevron {\n  color: #FF5A00;\n  font-size: 24px;\n  font-weight: 900;\n  transition: transform .2s;\n  flex-shrink: 0;\n}\n\n.pd-details[open] .pd-chevron { transform: rotate(90deg); }\n\n.pd-vehicle-grid {\n  display: grid;\n  grid-template-columns: 1fr 1fr;\n  gap: 10px 32px;\n  padding: 20px 28px 28px;\n  border-top: 1px solid rgba(255,255,255,.09);\n}\n\n@media (max-width: 640px) {\n  .pd-vehicle-grid { grid-template-columns: 1fr; }\n}\n\n.pd-vehicle-grid li {\n  font-size: 15px;\n  color: #8B94A3;\n  list-style: none;\n  padding-left: 0;\n  position: relative;\n  line-height: 1.6;\n}\n\n.pd-vehicle-grid li::before {\n  content: none;\n}\n\n.pd-video-cta {\n  background: #16191F;\n  border: 1px solid rgba(255,255,255,.09);\n  border-radius: 16px;\n  padding: 28px;\n}\n\n.pd-video-cta p {\n  font-size: 16px;\n  color: #8B94A3;\n  line-height: 1.7;\n}\n\n.pd-video-cta strong { color: #fff; font-size: 17px; }\n\u003c\/style\u003e\n\u003cdiv id=\"jrj-pd\"\u003e\n\u003cdiv class=\"pd-wrap\"\u003e\n\u003cdiv class=\"pd-eyebrow\"\u003eSpeed Engineering Headers\u003c\/div\u003e\n\u003ch2 class=\"pd-title\"\u003e1 3\/4\" Longtube Headers\u003c\/h2\u003e\n\u003cp class=\"pd-lead\"\u003eThese \u003cstrong\u003eSpeed Engineering 1 3\/4\" longtube headers\u003c\/strong\u003e are designed for \u003cstrong\u003e2007-2013 GM Silverado, Sierra, and SUV applications\u003c\/strong\u003e, delivering proven horsepower gains, excellent fitment, and durable \u003cstrong\u003e304 stainless steel construction\u003c\/strong\u003e. These headers are a great upgrade for \u003cstrong\u003eLS-based trucks\u003c\/strong\u003e looking for increased power, improved exhaust flow, and aggressive sound.\u003c\/p\u003e\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\u003eProven Longtube Performance\u003c\/b\u003e \u003cspan\u003eBuilt to improve exhaust flow, boost horsepower, and support stronger overall engine efficiency.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pd-variant\"\u003e\n\u003cdiv class=\"pd-variant-icon\"\u003e🚚\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eIdeal Truck Upgrade\u003c\/b\u003e \u003cspan\u003eA strong choice for street builds, cammed trucks, DOD\/AFM deletes, and full exhaust system upgrades.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pd-grid\"\u003e\n\u003cdiv class=\"pd-box\"\u003e\n\u003ch4\u003ePart Number\u003c\/h4\u003e\n\u003cul class=\"pd-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpeed Engineering:\u003c\/strong\u003e SPD-7514 (Reference)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pd-box\"\u003e\n\u003ch4\u003eProduct Features\u003c\/h4\u003e\n\u003cul class=\"pd-list\"\u003e\n\u003cli\u003eFull \u003cstrong\u003e1 3\/4\"\u003c\/strong\u003e mandrel-bent primary tubes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3\"\u003c\/strong\u003e collector for maximum exhaust flow\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLongtube header\u003c\/strong\u003e design\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e304 stainless steel\u003c\/strong\u003e construction\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTIG welded\u003c\/strong\u003e for strength and durability\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCNC machined flanges\u003c\/strong\u003e for precise fitment\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMerge spikes\u003c\/strong\u003e for improved exhaust scavenging\u003c\/li\u003e\n\u003cli\u003eIncludes standard \u003cstrong\u003egraphite manifold gaskets\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pd-grid\"\u003e\n\u003cdiv class=\"pd-box\"\u003e\n\u003ch4\u003eEngine Compatibility\u003c\/h4\u003e\n\u003cul class=\"pd-list\"\u003e\n\u003cli\u003eFits \u003cstrong\u003eGM LS-based V8 engines\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e4.8L\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e5.3L\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e6.0L\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e6.2L\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pd-box\"\u003e\n\u003ch4\u003eVehicle Compatibility\u003c\/h4\u003e\n\u003cul class=\"pd-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003e2007-2013 Chevrolet Silverado\u003c\/strong\u003e 2WD \u0026amp; 4WD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2007-2013 GMC Sierra\u003c\/strong\u003e 2WD \u0026amp; 4WD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2007-2014 Chevrolet Tahoe\u003c\/strong\u003e 2WD \u0026amp; 4WD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2007-2014 GMC Yukon\u003c\/strong\u003e 2WD \u0026amp; 4WD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2007-2014 Cadillac Truck \u0026amp; SUV\u003c\/strong\u003e 2WD \u0026amp; 4WD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2007-2014 Chevrolet Avalanche\u003c\/strong\u003e 2WD \u0026amp; 4WD\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pd-grid\"\u003e\n\u003cdiv class=\"pd-box\"\u003e\n\u003ch4\u003eSingle Exhaust Compatibility\u003c\/h4\u003e\n\u003cul class=\"pd-list\"\u003e\n\u003cli\u003eFits \u003cstrong\u003e2007-2019 GM 1\/2 ton trucks\u003c\/strong\u003e in 2WD and 4WD form\u003c\/li\u003e\n\u003cli\u003eFits \u003cstrong\u003eCrew Cab and Extended Cab short bed\u003c\/strong\u003e models\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e119\"\u003c\/strong\u003e wheelbase - Regular Cab Short Bed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e143.5\"\u003c\/strong\u003e wheelbase - Crew Cab Short Bed and Extended Cab Short Bed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLonger bed models\u003c\/strong\u003e require exhaust extension\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pd-box\"\u003e\n\u003ch4\u003eCommon Applications\u003c\/h4\u003e\n\u003cul class=\"pd-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eStreet and performance\u003c\/strong\u003e builds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCamshaft upgrades\u003c\/strong\u003e such as Chopacabra, Truck Norris, and similar setups\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDOD\/AFM delete\u003c\/strong\u003e builds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull exhaust system\u003c\/strong\u003e upgrades\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 14px;\" class=\"pd-box\"\u003e\n\u003ch4\u003ePerformance Benefits\u003c\/h4\u003e\n\u003cul class=\"pd-list\"\u003e\n\u003cli\u003eGain of \u003cstrong\u003e25+ rear wheel horsepower\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eImproved \u003cstrong\u003eexhaust flow and engine efficiency\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBetter \u003cstrong\u003ethrottle response\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eMore aggressive \u003cstrong\u003eexhaust sound\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pd-warning\"\u003e\n\u003ch4\u003eImportant Fitment Notes\u003c\/h4\u003e\n\u003cp\u003eThese headers are designed for \u003cstrong\u003eV8 applications only\u003c\/strong\u003e and should be matched to the correct body style and exhaust setup before installation.\u003c\/p\u003e\n\u003cul style=\"margin-bottom: 10px;\" class=\"pd-list\"\u003e\n\u003cli\u003e\u003cstrong\u003eDesigned for V8 applications only\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eWill \u003cstrong\u003enot fit 2007 Classic body style trucks\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eThe \u003cstrong\u003eY-pipe works with 6-speed automatic\u003c\/strong\u003e equipped vehicles\u003c\/li\u003e\n\u003cli\u003eSome applications may require \u003cstrong\u003eminor cutting or welding\u003c\/strong\u003e for installation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTuning required\u003c\/strong\u003e for optimal performance\u003c\/li\u003e\n\u003cli\u003eVerify \u003cstrong\u003eexhaust configuration\u003c\/strong\u003e before installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFor off-road and competition use only.\u003c\/strong\u003e Not legal for use on public roads or emissions-controlled vehicles.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdetails class=\"pd-details\"\u003e\n\u003csummary class=\"pd-summary\"\u003e\u003cspan\u003eInstallation Notes\u003c\/span\u003e \u003cspan class=\"pd-chevron\"\u003e›\u003c\/span\u003e\u003c\/summary\u003e\n\u003cul class=\"pd-vehicle-grid\"\u003e\n\u003cli\u003eProfessional installation recommended\u003c\/li\u003e\n\u003cli\u003eProven upgrade for GM truck and SUV performance builds\u003c\/li\u003e\n\u003cli\u003eLonger bed models require exhaust extension\u003c\/li\u003e\n\u003cli\u003eProper tuning helps maximize horsepower, sound, and drivability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/details\u003e\n\u003cdiv class=\"pd-video-cta\"\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e\u003cbr\u003eThese longtube headers are a \u003cstrong\u003eproven performance upgrade for GM trucks and SUVs\u003c\/strong\u003e. When paired with proper tuning, they deliver significant gains in \u003cstrong\u003ehorsepower, sound, and overall drivability\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"J.R. Jones Racing","offers":[{"title":"Headers Only","offer_id":43120275783747,"sku":null,"price":329.99,"currency_code":"USD","in_stock":true},{"title":"With Speed Engineering Off-Road Y-Pipe","offer_id":43120275816515,"sku":null,"price":529.99,"currency_code":"USD","in_stock":true},{"title":"With LS Manifold Gaskets","offer_id":43120275849283,"sku":null,"price":369.99,"currency_code":"USD","in_stock":true},{"title":"With Header Bolts","offer_id":43120275882051,"sku":null,"price":345.99,"currency_code":"USD","in_stock":true},{"title":"With All Extras","offer_id":43120275914819,"sku":null,"price":569.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0659\/1964\/7811\/files\/Headers.webp?v=1775497289"},{"product_id":"speed-engineering-1-7-8-longtube-headers-1999-2006-silverado-sierra-ls-truck-headers-copy","title":"Speed Engineering 1 7\/8\" Longtube Headers – 2007–2013 Silverado Sierra LS Trucks","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-pd {\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\n#jrj-pd * { box-sizing: border-box; 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}\n}\n\n.pd-variant {\n  background: #16191F;\n  border: 1px solid rgba(255,255,255,.09);\n  border-radius: 16px;\n  padding: 22px 24px;\n  display: flex;\n  gap: 16px;\n  align-items: flex-start;\n  transition: border-color .2s;\n}\n\n.pd-variant:hover { border-color: rgba(255,90,0,.35); }\n\n.pd-variant-icon {\n  width: 48px;\n  height: 48px;\n  border-radius: 12px;\n  background: rgba(255,90,0,.12);\n  border: 1px solid rgba(255,90,0,.22);\n  display: flex;\n  align-items: center;\n  justify-content: center;\n  font-size: 24px;\n  flex-shrink: 0;\n}\n\n.pd-variant b {\n  display: block;\n  font-size: 17px;\n  font-weight: 700;\n  color: #fff;\n  margin-bottom: 6px;\n}\n\n.pd-variant span {\n  font-size: 15px;\n  color: #8B94A3;\n  line-height: 1.55;\n}\n\n.pd-warning {\n  background: rgba(255,90,0,.07);\n  border: 1px solid rgba(255,90,0,.22);\n  border-left: 4px solid #FF5A00;\n  border-radius: 16px;\n  padding: 24px 28px;\n  margin-bottom: 16px;\n}\n\n.pd-warning h4 {\n  font-family: 'Barlow Condensed', sans-serif;\n  font-weight: 900;\n  font-size: 20px;\n  text-transform: uppercase;\n  letter-spacing: .5px;\n  color: #FF5A00;\n  margin-bottom: 14px;\n}\n\n.pd-warning p {\n  font-size: 16px;\n  color: #8B94A3;\n  line-height: 1.65;\n  margin-bottom: 14px;\n}\n\n.pd-warning p:last-child { margin-bottom: 0; }\n.pd-warning strong { color: #E8EDF2; }\n\n.pd-details {\n  background: #16191F;\n  border: 1px solid rgba(255,255,255,.09);\n  border-radius: 16px;\n  overflow: hidden;\n  margin-bottom: 16px;\n}\n\n.pd-details[open] { border-color: rgba(255,90,0,.3); }\n\n.pd-summary {\n  cursor: pointer;\n  list-style: none;\n  display: flex;\n  align-items: center;\n  justify-content: space-between;\n  gap: 12px;\n  padding: 22px 28px;\n  font-family: 'Barlow Condensed', sans-serif;\n  font-weight: 900;\n  font-size: 20px;\n  text-transform: uppercase;\n  letter-spacing: .5px;\n  color: #fff;\n  user-select: none;\n}\n\n.pd-summary::-webkit-details-marker { display: none; }\n\n.pd-chevron {\n  color: #FF5A00;\n  font-size: 24px;\n  font-weight: 900;\n  transition: transform .2s;\n  flex-shrink: 0;\n}\n\n.pd-details[open] .pd-chevron { transform: rotate(90deg); }\n\n.pd-vehicle-grid {\n  display: grid;\n  grid-template-columns: 1fr 1fr;\n  gap: 10px 32px;\n  padding: 20px 28px 28px;\n  border-top: 1px solid rgba(255,255,255,.09);\n}\n\n@media (max-width: 640px) {\n  .pd-vehicle-grid { grid-template-columns: 1fr; }\n}\n\n.pd-vehicle-grid li {\n  font-size: 15px;\n  color: #8B94A3;\n  list-style: none;\n  padding-left: 0;\n  position: relative;\n  line-height: 1.6;\n}\n\n.pd-vehicle-grid li::before {\n  content: none;\n}\n\n.pd-video-cta {\n  background: #16191F;\n  border: 1px solid rgba(255,255,255,.09);\n  border-radius: 16px;\n  padding: 28px;\n}\n\n.pd-video-cta p {\n  font-size: 16px;\n  color: #8B94A3;\n  line-height: 1.7;\n}\n\n.pd-video-cta strong { color: #fff; font-size: 17px; }\n\u003c\/style\u003e\n\u003cdiv id=\"jrj-pd\"\u003e\n\u003cdiv class=\"pd-wrap\"\u003e\n\u003cdiv class=\"pd-eyebrow\"\u003eSpeed Engineering Headers\u003c\/div\u003e\n\u003ch2 class=\"pd-title\"\u003e1 7\/8\" Longtube Headers\u003c\/h2\u003e\n\u003cp class=\"pd-lead\"\u003eThese \u003cstrong\u003eSpeed Engineering 1 7\/8\" longtube headers\u003c\/strong\u003e are designed for \u003cstrong\u003e2007-2013 GM Silverado, Sierra, and SUV applications\u003c\/strong\u003e, delivering increased airflow and higher horsepower potential for more aggressive builds. Constructed from durable \u003cstrong\u003e304 stainless steel\u003c\/strong\u003e, these headers are ideal for cammed and higher-performance \u003cstrong\u003eLS-based setups\u003c\/strong\u003e.\u003c\/p\u003e\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\u003eHigh-Flow Longtube Design\u003c\/b\u003e \u003cspan\u003eBuilt to improve exhaust scavenging, increase airflow, and support stronger top-end power in LS-based builds.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pd-variant\"\u003e\n\u003cdiv class=\"pd-variant-icon\"\u003e🏁\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eCammed Build Ready\u003c\/b\u003e \u003cspan\u003eBest suited for camshaft builds, DOD\/AFM deletes, and higher horsepower street or performance combinations.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pd-grid\"\u003e\n\u003cdiv class=\"pd-box\"\u003e\n\u003ch4\u003ePart Number\u003c\/h4\u003e\n\u003cul class=\"pd-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpeed Engineering:\u003c\/strong\u003e SPD-7515 (Reference)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pd-box\"\u003e\n\u003ch4\u003eProduct Features\u003c\/h4\u003e\n\u003cul class=\"pd-list\"\u003e\n\u003cli\u003eFull \u003cstrong\u003e1 7\/8\"\u003c\/strong\u003e mandrel-bent primary tubes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3\"\u003c\/strong\u003e collector for maximum exhaust flow\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLongtube header\u003c\/strong\u003e design\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e304 stainless steel\u003c\/strong\u003e construction\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTIG welded\u003c\/strong\u003e for strength and durability\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCNC machined flanges\u003c\/strong\u003e for precise fitment\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMerge spikes\u003c\/strong\u003e for improved exhaust scavenging\u003c\/li\u003e\n\u003cli\u003eIncludes standard \u003cstrong\u003egraphite manifold gaskets\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pd-grid\"\u003e\n\u003cdiv class=\"pd-box\"\u003e\n\u003ch4\u003eEngine Compatibility\u003c\/h4\u003e\n\u003cul class=\"pd-list\"\u003e\n\u003cli\u003eFits \u003cstrong\u003eGM LS-based V8 engines\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e4.8L\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e5.3L\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e6.0L\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e6.2L\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pd-box\"\u003e\n\u003ch4\u003eVehicle Compatibility\u003c\/h4\u003e\n\u003cul class=\"pd-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003e2007-2013 Chevrolet Silverado\u003c\/strong\u003e 2WD \u0026amp; 4WD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2007-2013 GMC Sierra\u003c\/strong\u003e 2WD \u0026amp; 4WD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2007-2014 Chevrolet Tahoe\u003c\/strong\u003e 2WD \u0026amp; 4WD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2007-2014 GMC Yukon\u003c\/strong\u003e 2WD \u0026amp; 4WD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2007-2014 Cadillac Truck \u0026amp; SUV\u003c\/strong\u003e 2WD \u0026amp; 4WD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2007-2014 Chevrolet Avalanche\u003c\/strong\u003e 2WD \u0026amp; 4WD\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pd-grid\"\u003e\n\u003cdiv class=\"pd-box\"\u003e\n\u003ch4\u003eSingle Exhaust Compatibility\u003c\/h4\u003e\n\u003cul class=\"pd-list\"\u003e\n\u003cli\u003eFits \u003cstrong\u003e2007-2019 GM 1\/2 ton trucks\u003c\/strong\u003e in 2WD and 4WD form\u003c\/li\u003e\n\u003cli\u003eFits \u003cstrong\u003eCrew Cab and Extended Cab short bed\u003c\/strong\u003e models\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e119\"\u003c\/strong\u003e wheelbase - Regular Cab Short Bed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e143.5\"\u003c\/strong\u003e wheelbase - Crew Cab Short Bed and Extended Cab Short Bed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLonger bed models\u003c\/strong\u003e require exhaust extension\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pd-box\"\u003e\n\u003ch4\u003eCommon Applications\u003c\/h4\u003e\n\u003cul class=\"pd-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eCamshaft builds\u003c\/strong\u003e such as Chopacabra, Truck Norris, and similar setups\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigher horsepower\u003c\/strong\u003e street and performance builds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDOD\/AFM delete\u003c\/strong\u003e builds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull exhaust system\u003c\/strong\u003e upgrades\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 14px;\" class=\"pd-box\"\u003e\n\u003ch4\u003ePerformance Benefits\u003c\/h4\u003e\n\u003cul class=\"pd-list\"\u003e\n\u003cli\u003eImproved \u003cstrong\u003ehigh-RPM airflow\u003c\/strong\u003e over 1 3\/4\" headers\u003c\/li\u003e\n\u003cli\u003eSupports \u003cstrong\u003ehigher horsepower builds\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eIncreased \u003cstrong\u003eexhaust flow and efficiency\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eMore aggressive \u003cstrong\u003eexhaust tone\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pd-warning\"\u003e\n\u003ch4\u003eImportant Fitment Notes\u003c\/h4\u003e\n\u003cp\u003eThese headers are designed for \u003cstrong\u003eV8 applications only\u003c\/strong\u003e and should be matched carefully to your exact truck, exhaust, and transmission combination.\u003c\/p\u003e\n\u003cul style=\"margin-bottom: 10px;\" class=\"pd-list\"\u003e\n\u003cli\u003e\u003cstrong\u003eDesigned for V8 applications only\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eWill \u003cstrong\u003enot fit 2007 Classic body style trucks\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eThe \u003cstrong\u003eY-pipe works with 6-speed automatic\u003c\/strong\u003e equipped vehicles\u003c\/li\u003e\n\u003cli\u003eSome applications may require \u003cstrong\u003eminor cutting or welding\u003c\/strong\u003e for installation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTuning required\u003c\/strong\u003e for optimal performance\u003c\/li\u003e\n\u003cli\u003eVerify \u003cstrong\u003eexhaust configuration\u003c\/strong\u003e before installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFor off-road and competition use only.\u003c\/strong\u003e Not legal for use on public roads or emissions-controlled vehicles.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdetails class=\"pd-details\"\u003e\n\u003csummary class=\"pd-summary\"\u003e\u003cspan\u003eInstallation Notes\u003c\/span\u003e \u003cspan class=\"pd-chevron\"\u003e›\u003c\/span\u003e\u003c\/summary\u003e\n\u003cul class=\"pd-vehicle-grid\"\u003e\n\u003cli\u003eProfessional installation recommended\u003c\/li\u003e\n\u003cli\u003eBest suited for cammed and higher horsepower builds\u003c\/li\u003e\n\u003cli\u003eLonger bed trucks may require exhaust extension\u003c\/li\u003e\n\u003cli\u003eCustom tuning helps maximize airflow and power gains\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/details\u003e\n\u003cdiv class=\"pd-video-cta\"\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e\u003cbr\u003eThese \u003cstrong\u003e1 7\/8\" longtube headers\u003c\/strong\u003e are best suited for cammed or higher horsepower builds where maximum airflow is required. For optimal results, pair them with \u003cstrong\u003eproper custom tuning\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"J.R. Jones Racing","offers":[{"title":"Headers Only","offer_id":43120277749827,"sku":null,"price":349.99,"currency_code":"USD","in_stock":true},{"title":"With Speed Engineering Off-Road Y-Pipe","offer_id":43120277782595,"sku":null,"price":529.99,"currency_code":"USD","in_stock":true},{"title":"With LS Manifold Gaskets","offer_id":43120277815363,"sku":null,"price":369.99,"currency_code":"USD","in_stock":true},{"title":"With Header Bolts","offer_id":43120277848131,"sku":null,"price":345.99,"currency_code":"USD","in_stock":true},{"title":"With All Extras","offer_id":43120277880899,"sku":null,"price":569.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0659\/1964\/7811\/files\/Headers.webp?v=1775497289"},{"product_id":"speed-engineering-1-7-8-longtube-headers-2007-2013-silverado-sierra-ls-trucks-copy","title":"Speed Engineering 1 7\/8\" Longtube Headers – 2014–2019 Silverado Sierra LT Trucks","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-pd {\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\n#jrj-pd * { box-sizing: border-box; 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}\n.pd-warning strong { color: #E8EDF2; }\n\n.pd-details {\n  background: #16191F;\n  border: 1px solid rgba(255,255,255,.09);\n  border-radius: 16px;\n  overflow: hidden;\n  margin-bottom: 16px;\n}\n\n.pd-details[open] { border-color: rgba(255,90,0,.3); }\n\n.pd-summary {\n  cursor: pointer;\n  list-style: none;\n  display: flex;\n  align-items: center;\n  justify-content: space-between;\n  gap: 12px;\n  padding: 22px 28px;\n  font-family: 'Barlow Condensed', sans-serif;\n  font-weight: 900;\n  font-size: 20px;\n  text-transform: uppercase;\n  letter-spacing: .5px;\n  color: #fff;\n  user-select: none;\n}\n\n.pd-summary::-webkit-details-marker { display: none; }\n\n.pd-chevron {\n  color: #FF5A00;\n  font-size: 24px;\n  font-weight: 900;\n  transition: transform .2s;\n  flex-shrink: 0;\n}\n\n.pd-details[open] .pd-chevron { transform: rotate(90deg); }\n\n.pd-vehicle-grid {\n  display: grid;\n  grid-template-columns: 1fr 1fr;\n  gap: 10px 32px;\n  padding: 20px 28px 28px;\n  border-top: 1px solid rgba(255,255,255,.09);\n}\n\n@media (max-width: 640px) {\n  .pd-vehicle-grid { grid-template-columns: 1fr; }\n}\n\n.pd-vehicle-grid li {\n  font-size: 15px;\n  color: #8B94A3;\n  list-style: none;\n  padding-left: 0;\n  position: relative;\n  line-height: 1.6;\n}\n\n.pd-vehicle-grid li::before {\n  content: none;\n}\n\n.pd-video-cta {\n  background: #16191F;\n  border: 1px solid rgba(255,255,255,.09);\n  border-radius: 16px;\n  padding: 28px;\n}\n\n.pd-video-cta p {\n  font-size: 16px;\n  color: #8B94A3;\n  line-height: 1.7;\n}\n\n.pd-video-cta strong { color: #fff; font-size: 17px; }\n\u003c\/style\u003e\n\u003cdiv id=\"jrj-pd\"\u003e\n\u003cdiv class=\"pd-wrap\"\u003e\n\u003cdiv class=\"pd-eyebrow\"\u003eSpeed Engineering Headers\u003c\/div\u003e\n\u003ch2 class=\"pd-title\"\u003e1 7\/8\" Longtube Headers\u003c\/h2\u003e\n\u003cp class=\"pd-lead\"\u003eThese \u003cstrong\u003eSpeed Engineering 1 7\/8\" longtube headers\u003c\/strong\u003e are designed for \u003cstrong\u003e2014-2019 GM Silverado, Sierra, and SUV applications\u003c\/strong\u003e, providing increased airflow and horsepower for higher performance \u003cstrong\u003eLT-based builds\u003c\/strong\u003e. Constructed from durable \u003cstrong\u003e304 stainless steel\u003c\/strong\u003e, these headers deliver excellent fitment, proven gains, and long-term reliability.\u003c\/p\u003e\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\u003eHigh-Flow Longtube Design\u003c\/b\u003e \u003cspan\u003eBuilt to improve exhaust scavenging, increase airflow, and support higher horsepower LT combinations.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pd-variant\"\u003e\n\u003cdiv class=\"pd-variant-icon\"\u003e🏁\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003ePerformance Build Ready\u003c\/b\u003e \u003cspan\u003eBest suited for cammed, higher horsepower, and full exhaust system upgrade applications.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pd-grid\"\u003e\n\u003cdiv class=\"pd-box\"\u003e\n\u003ch4\u003ePart Number\u003c\/h4\u003e\n\u003cul class=\"pd-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpeed Engineering:\u003c\/strong\u003e SPD-7516 (Reference)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pd-box\"\u003e\n\u003ch4\u003eProduct Features\u003c\/h4\u003e\n\u003cul class=\"pd-list\"\u003e\n\u003cli\u003eFull \u003cstrong\u003e1 7\/8\"\u003c\/strong\u003e mandrel-bent primary tubes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3\"\u003c\/strong\u003e collector for maximum exhaust flow\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLongtube header\u003c\/strong\u003e design\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e304 stainless steel\u003c\/strong\u003e construction\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTIG welded\u003c\/strong\u003e for strength and durability\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCNC machined flanges\u003c\/strong\u003e for precise fitment\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMerge spikes\u003c\/strong\u003e for improved exhaust scavenging\u003c\/li\u003e\n\u003cli\u003eIncludes standard \u003cstrong\u003egraphite manifold gaskets\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pd-grid\"\u003e\n\u003cdiv class=\"pd-box\"\u003e\n\u003ch4\u003eEngine Compatibility\u003c\/h4\u003e\n\u003cul class=\"pd-list\"\u003e\n\u003cli\u003eFits \u003cstrong\u003eGM LT-based V8 engines\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e5.3L\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e6.2L\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pd-box\"\u003e\n\u003ch4\u003eVehicle Compatibility\u003c\/h4\u003e\n\u003cul class=\"pd-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003e2014-2019 Chevrolet Silverado\u003c\/strong\u003e 2WD \u0026amp; 4WD - Classic body style\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2014-2019 GMC Sierra\u003c\/strong\u003e 2WD \u0026amp; 4WD - Classic body style\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2015-2020 Chevrolet Tahoe\u003c\/strong\u003e 2WD \u0026amp; 4WD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2015-2020 GMC Yukon \u0026amp; Yukon Denali\u003c\/strong\u003e 2WD \u0026amp; 4WD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2015-2020 Cadillac Escalade\u003c\/strong\u003e 2WD \u0026amp; 4WD\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pd-grid\"\u003e\n\u003cdiv class=\"pd-box\"\u003e\n\u003ch4\u003eCommon Applications\u003c\/h4\u003e\n\u003cul class=\"pd-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eCamshaft upgrades\u003c\/strong\u003e and performance builds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigher horsepower\u003c\/strong\u003e LT engine setups\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDOD\/AFM delete\u003c\/strong\u003e builds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull exhaust system\u003c\/strong\u003e upgrades\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pd-box\"\u003e\n\u003ch4\u003ePerformance Benefits\u003c\/h4\u003e\n\u003cul class=\"pd-list\"\u003e\n\u003cli\u003eGain of \u003cstrong\u003e25+ rear wheel horsepower\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eImproved \u003cstrong\u003ehigh-RPM airflow\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eIncreased \u003cstrong\u003eexhaust efficiency\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eMore aggressive \u003cstrong\u003eexhaust tone\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pd-warning\"\u003e\n\u003ch4\u003eImportant Fitment Notes\u003c\/h4\u003e\n\u003cp\u003eThese headers are designed for \u003cstrong\u003eV8 applications only\u003c\/strong\u003e and should be verified carefully before purchase or installation.\u003c\/p\u003e\n\u003cul style=\"margin-bottom: 10px;\" class=\"pd-list\"\u003e\n\u003cli\u003e\u003cstrong\u003eDesigned for V8 applications only\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eCompatible with \u003cstrong\u003e6-speed and 8-speed automatic transmissions\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eOnly fits \u003cstrong\u003e2019 Classic body style trucks\u003c\/strong\u003e, not the new body style\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2500\/3500 6.0L applications\u003c\/strong\u003e require 2007-2013 exhaust systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTuning required\u003c\/strong\u003e for optimal performance\u003c\/li\u003e\n\u003cli\u003eVerify \u003cstrong\u003evehicle fitment\u003c\/strong\u003e before installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFor off-road and competition use only.\u003c\/strong\u003e Not legal for use on public roads or emissions-controlled vehicles.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdetails class=\"pd-details\"\u003e\n\u003csummary class=\"pd-summary\"\u003e\u003cspan\u003eInstallation Notes\u003c\/span\u003e \u003cspan class=\"pd-chevron\"\u003e›\u003c\/span\u003e\u003c\/summary\u003e\n\u003cul class=\"pd-vehicle-grid\"\u003e\n\u003cli\u003eProfessional installation recommended\u003c\/li\u003e\n\u003cli\u003eBest suited for cammed and higher horsepower LT builds\u003c\/li\u003e\n\u003cli\u003ePair with a full exhaust system for best results\u003c\/li\u003e\n\u003cli\u003eCustom tuning helps maximize airflow and power gains\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/details\u003e\n\u003cdiv class=\"pd-video-cta\"\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e\u003cbr\u003eThese \u003cstrong\u003e1 7\/8\" longtube headers\u003c\/strong\u003e are best suited for cammed and higher horsepower LT builds where increased airflow is required. For best results, pair them with \u003cstrong\u003eproper custom tuning\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"J.R. Jones Racing","offers":[{"title":"Headers Only","offer_id":43120280830019,"sku":null,"price":349.99,"currency_code":"USD","in_stock":true},{"title":"With Speed Engineering Off-Road Y-Pipe","offer_id":43120280862787,"sku":null,"price":529.99,"currency_code":"USD","in_stock":true},{"title":"With LS Manifold Gaskets","offer_id":43120280895555,"sku":null,"price":369.99,"currency_code":"USD","in_stock":true},{"title":"With Header Bolts","offer_id":43120280928323,"sku":null,"price":345.99,"currency_code":"USD","in_stock":true},{"title":"With All Extras","offer_id":43120280961091,"sku":null,"price":569.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0659\/1964\/7811\/files\/25-1037Silverado_SierraLongtubeHeaders2014-2019_720x_462c53f0-e9a4-406b-a8e8-d6a8b4006670.webp?v=1775497961"}],"url":"https:\/\/jrjonesracing.com\/collections\/speed-engineering.oembed","provider":"J.R. Jones Racing","version":"1.0","type":"link"}