DiabloSport 7226-R Computer Programmer/Tuner for Chevrolet GMC 5.3 6.2

The DiabloSport Predator 2 7226-R Kit is the complete tuning solution for 2019-2022 (pre refresh) GM trucks powered by the 5.3L/6.2L gas engines. From the factory, these trucks are locked down, making tuning impossible—until now. This kit includes the Predator 2 handheld programmer, plus the locksmith device and harnesses required to unlock both the ECM and TCM, giving you full access to engine and transmission tuning.\nOnce unlocked, the Predator 2 delivers dyno-tested tunes designed to add noticeable horsepower, torque, and throttle response while improving overall drivability. It also offers dedicated transmission calibrations, letting you choose from multiple transmission tunes to refine shifting and power delivery to match your driving needs.\nFor those who want even more, the Predator 2 supports custom tuning through DiabloSport’s nationwide network of CMR tuners, enabling dyno-calibrated files built around your truck’s unique setup. Beyond the preloaded and custom tunes, you’ll also have access to a wide range of user-adjustable parameters, including throttle response, speed limiter, tire size calibration, and DFM disable. New features for these models even include last mode recall and Auto Start/Stop retention.\nFor GM truck owners who demand real-world performance gains and the flexibility of both preloaded and custom tuning, the Predator 2 7226-R Kit is the key to unleashing your 5.3/6.2 powered Silverado or Sierra.