Diablosport inTune 3 Tuner with ECM and TCM Unlock (19-21 V8 Sierra 1500; 2022 V8 Sierra 1500 Limited)Find parts that fit my vehicle

The 2019-2022 (22.5+ refresh not supported at this time) GM gas trucks have been locked down since their introduction. Owners of these trucks have been waiting patiently for a tuning solution, and DiabloSport has delivered in a big way! The new 8225-R kit includes our industry leading inTune 3 handheld tuner, along with the locksmith device and harnesses required to unlock both the ECM and TCM in your truck. Once unlocked, the inTune 3 offers up tunes for 87, 91 and 93 octane fuels, as well as 2 transmission tunes to choose from. Beyond the preloaded tunes, we offer a host of user adjustable parameters, like throttle response, speed limit, tire size, and of course, DFM disable! We've even added some new features for drivers of these newer trucks, like the ability to recall your last mode setting, or to retain your auto-start-stop setting.
Get power you can feel, with DiabloSport!

Features:
ECM and TCM unlock included!
Unlock and Tune, at home!
Preloaded tunes for multiple octane levels
Support for 5.3L and 6.2L V8 applications with 6, 8 or 10 speed transmissions
Disable Dynamic Fuel Management for full time V8 operation
Throttle Boost setting for adjustable throttle feel
Adjust speedometer for larger tires (26"-38")
Calibrate speedometer for gear change (3.42-5.13)
Remove speed limiter for increased top speed
Adjust engine rev limiter for increased RPM range (+/- 400 RPM)
Adjust engine idle speed in Park/Neutral and Drive
New ‘Keep Auto Stop Start Setting’ allows you to disable the system using the button on the dash and it stays that way!
New ‘Keep Drive Mode Setting’ allows you to select a drive mode and it will remember that mode next time you start the truck!

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