2014–2018 Silverado / Sierra LS 4.8 / 5.3 / 6.2L Tune Files
Built specifically for the 2014–2018 Chevy Silverado & GMC Sierra with 4.8L, 5.3L, and 6.2L LS engines using real-world data, GM logic, and proven calibration experience. Whether you're running a stock truck, a performance cam with DOD delete, these files improve drivability, throttle response, and power delivery for your exact combination.
Base Tune — Stock Truck
Ideal for a stock or lightly modified 4.8L, 5.3L, or 6.2L setup — cold air intake, headers, exhaust. Cleans up GM's sluggish factory calibration, sharpens throttle response, smooths shifting, and improves overall drivability without any hardware changes required.
Cam Tune — DOD / AFM Delete
Built for 2014–2018 LS trucks running a DOD/AFM delete and an aftermarket camshaft. Properly disables cylinder deactivation, corrects airflow, fueling, idle control, and stalling issues while keeping an aggressive, controlled cam chop. Works with a wide range of popular cam grinds — see below.
Supported Cam Options
We build the cam tune around your specific camshaft. Message us with your cam details before or after purchase so we can dial it in correctly for your setup. Popular options include:
- Texas Speed Chopacabra (Stage 1 & Stage 2)
- BTR Stage 2 Truck Cam
- BTR Stage 3 Truck Cam
- BTR Truck Norris
- Sloppy Mechanics grinds
- Scoggin-Dickey cams
- Comp Cams LS truck options
- Other aftermarket LS-compatible camshafts — ask us if you don't see yours listed
Compatibility
- 2014–2018 Chevy Silverado 1500 (4.8L, 5.3L, 6.2L)
- 2014–2018 GMC Sierra 1500 (4.8L, 5.3L, 6.2L)
- Supports stock, DOD deleted, and cammed engines
- HP Tuners required for reading and flashing
Tune Highlights
- Sharper throttle response + cleaner power delivery
- Smoother, smarter shifts across all transmission variants
- DOD / AFM properly disabled after delete
- Fixes idle + drivability issues after cam install
- Improved torque feel and acceleration character
What We Need From You
- After purchase, email your HP Tuners factory read file to Tunes@JRJonesRacing.com
- Include your order number and full mod list — cam, headers, intake, injectors, converter, DOD delete kit, etc.
- Let us know your engine size (4.8L, 5.3L, or 6.2L) and transmission type
- Typical turnaround: minutes — up to 24 hours depending on workload
- Up to 3 revisions included if your setup needs follow-up adjustments
⚠️ Flashing & Safety Notice
Flashing your PCM can be dangerous if not done properly. Follow these steps to avoid bricking your PCM:
- Never flash over Bluetooth or Wi-Fi — always use a hard-wired USB connection
- Connect a battery charger to maintain stable voltage during the write process
- Do not interrupt the process once writing has begun
J.R. Jones Automotive & Performance is not liable for any PCM or ECU damage resulting from improper flashing or unsafe tuning practices.
Need help sending your tune file?
Watch our step-by-step video on how to read your stock file using HP Tuners and email it in for calibration.
