DiabloSport 8225-R Chevrolet GMC 5.3 6.2 Tuner/Programmer

Since their release, 2019–2022 GM gas trucks (2022.5+ Refresh not yet supported) have been locked down—leaving owners waiting for a tuning solution. The wait is over. The DiabloSport inTune i3 8225-R Kit provides everything you need to finally unlock performance in your late-model GM truck. This complete package includes the industry-leading inTune i3 handheld tuner along with the specialized locksmith device and harnesses required to unlock both the ECM and TCM, giving you full access to tuning capability.\nOnce unlocked, the inTune i3 delivers preloaded performance tunes for 87, 91, and 93 octane fuels, plus two transmission tuning options for enhanced drivability and power delivery. The device also supports custom tuning through DiabloSport’s nationwide network of CMR tuners, allowing you to get dyno-calibrated tunes built specifically for your setup.\nBeyond preloaded and custom tunes, drivers can fine-tune their trucks with user-adjustable parameters including throttle response, speed limiter, tire size calibration, rev limit, and even DFM (Dynamic Fuel Management) disable. Exclusive features for these models include the ability to recall your last drive mode setting and retain your auto start-stop preference—so your truck always drives the way you want it to.\nThe DiabloSport inTune i3 8225-R Kit is the breakthrough GM truck owners have been waiting for, delivering real horsepower gains, improved drivability, and the freedom to tailor your truck’s performance to your lifestyle.