GM 2019-2022 Gas Trucks;ECM MUST BE SENT IN TO US FOR UNLOCKING PRIOR TO INSTALLING FLASH TUNING; ECM Send In process and Next Day Air return shipping included in purchase of device; Max gains of 37hp/36tq in 5.3L; Max gains of 45hp/45tq in 6.2L; Shave .5-seconds off 0-60 times; Testing showed +4mph in 1/4-mile times; High-definition, 2.8″ color screen; Redesigned graphic interface for improved user experience; Increased memory with faster processor for improved tuning & updating speed; Performance tuning for Economy, Towing, Daily Driving, & Extreme Tuning; Carries power curve higher into RPM range; Smoother idle; Improved throttle response; Speedometer correction for changes in tire size and gear ratio; Adjust speed & rev limiters; Internet updateable with all-new update software via USB; Active/Dynamic Fuel Management control; Adjust Idle RPM in Park, Neutral and Drive; Remember Last Setting for Auto Start/Stop; Remember Last Setting for Drive modes; Adjustable TPMS settings 1-90psi; Vehicle parameter monitoring capabilities; Read & clear diagnostic trouble codes; Compatible with GM 2019-2022 Silverado and Sierra; 2-year powertrain warranty;