Description
Overview
Unlock the true potential of your late-model GM truck with the DiabloSport inTune i3 8225-R Computer Chip Programmer. Built for Chevrolet and GMC gas trucks equipped with the 5.3L and 6.2L engines, this complete tuning package finally delivers a solution for the 2019–2022 GM gas platforms that have long been locked down from the factory. If you’ve been waiting for a way to access real tuning capability on your late-model truck, the wait is over.
This kit centers around the industry-leading inTune i3 handheld tuner and pairs it with the specialized locksmith device and harnesses required to unlock both the ECM and TCM. That means full access to engine and transmission tuning, so you can move beyond factory restrictions and take command of how your gas truck performs and drives.
Key Benefits
The inTune i3 is engineered as an all-in-one tuning tool. A vivid color touch screen display makes navigating menus, loading tunes, and monitoring your truck intuitive and fast. Performance tunes are built in, giving you access to power-focused calibrations, while custom tuning support lets you dial in a setup tailored to your goals. The i3 also accepts custom tunes from CMR, opening the door to professional, application-specific calibrations.
Beyond tuning, the i3 doubles as a capable monitoring and diagnostic companion. Onboard data logging and 5-volt data logging inputs let you capture and analyze real-world performance data, while the built-in speedometer function helps keep your readings accurate. Wi-Fi updates keep the device current with the latest software without extra hassle.
- Complete 8225-R kit: inTune i3 handheld tuner plus the locksmith device and harnesses to unlock the ECM and TCM
- Full-color touch screen display for easy, intuitive operation
- Built-in performance tunes plus custom tuning support
- Accepts custom tunes from CMR for professional calibration
- Data logging with 5-volt data logging inputs and speedometer function
- Wi-Fi updates to stay current
Fitment
This programmer is designed for 2019–2022 GM gas trucks running the 5.3L and 6.2L engines. Please note that the 2022.5+ Refresh models are not yet supported. The device is built for gasoline applications and provides the ECM and TCM unlocking hardware needed to make tuning possible on these previously locked platforms.
Important Compliance Notes
This unit is not 50-state legal and is not CARB (California) compliant; it carries Emission Code 7. In addition, this product is subject to a California Proposition 65 warning. It does not include an AC adapter, is not video capable, and does not offer in-cab monitoring. Confirm your vehicle year, engine, and intended use before purchasing to ensure this is the right tuning solution for your truck.










