Verified customer reviews
This tune file is built for 2014-2018 GM truck and SUV platforms running the 4.3L LV3, 5.3L L83, or 6.2L L86 engine family.
Whether your truck is stock, bolt-on, DOD/AFM deleted, or running an aftermarket camshaft, we build the calibration around your actual factory read file and full modification list. The goal is clean startup, smooth drivability, better throttle response, proper shift behavior, and a tune that matches your exact setup.
This is not a random pulled file. Your tune is built around your factory read file, operating system, engine size, transmission, cam setup, converter, gear ratio, tire size, and full modification list. We tune, test, log, revise, and communicate until the file is working the way it should for your supported setup.
These Gen V GM trucks respond well to the right calibration, but they need more than a quick file change. Stock trucks, bolt-on trucks, DOD/AFM delete builds, and cammed setups all need the airflow, fueling, spark, torque model, driver demand, and transmission behavior matched to the real vehicle.
These vehicles share the 2014-2018 Gen V GM truck/SUV tuning family when equipped with supported 4.3L, 5.3L, or 6.2L combinations.
This is a performance calibration designed for GM Gen V trucks and SUVs running stock, bolt-on, DOD delete, or camshaft setups.
You 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.
Poor 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.
J.R. Jones Automotive & Performance is not liable 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.
Always flash using a hard-wired USB connection. Do not flash over weak connections, unstable power, or while the vehicle battery is low.
Use a battery charger or maintainer during the write process. Do not interrupt the flash once writing has started.
Customer is responsible for having the proper tuning hardware, software, licensing, and stable equipment needed to read and flash the vehicle.
If your Silverado, Sierra, Tahoe, Yukon, Suburban, Yukon XL, or Escalade has injectors, converter changes, gear/tire changes, boost, nitrous, or anything beyond a normal stock, bolt-on, DOD delete, or street cam setup, use the Build Your Tune page so we can match the calibration to your exact vehicle.
```
