Description
Overview
Take your 2017 or newer GM vehicle to the next level with the DiabloSport inTune i3 Performance Programmer. Engineered specifically for late-model GM cars and trucks, this handheld tuner unlocks proven horsepower and torque gains while improving throttle response, drivability, and fuel economy potential. Preloaded with dyno-tested tunes designed for your exact application, the inTune i3 delivers instant performance without the need to pop the hood. Whether you’re driving a Cadillac, Chevrolet, or GMC equipped with the 4.3, 5.3, 6.0, or 6.2 gasoline engine, this programmer is built to match your powertrain.
Key Benefits
The inTune i3 combines serious tuning capability with a genuinely easy-to-use interface. A full color touch screen display makes navigating menus and selecting tunes simple, while onboard data logging with 5-volt data logging inputs lets you monitor and record real driving data. Because it accepts custom tunes from CMR, the platform grows with you — start with the preloaded performance tunes and step up to fully custom calibrations tailored to your build. Wi-Fi updates keep your device current with the latest software straight from the source, so you’re always running the newest tuning files.
- Preloaded, dyno-tested performance tunes for GM 4.3, 5.3, 6.0, and 6.2 gasoline engines
- Full color touch screen display for intuitive operation
- Onboard data logging with 5-volt data logging inputs
- Custom tuning ready — accepts custom tunes from CMR
- Wi-Fi updates for the latest software and tuning files
- Speedometer calibration to correct for tire and gearing changes
- 50-state legal and CARB compliant (C.A.R.B. EO # D-802-19, Emission Code 1)
Emissions Compliance
Performance shouldn’t mean compromise. The inTune i3 is 50-state legal and CARB (California) compliant, carrying C.A.R.B. Executive Order # D-802-19. That means you can add real gains and dial in your GM vehicle with confidence, knowing the programmer meets the requirements for emissions-controlled applications.
Speedometer Calibration & Drivability
Beyond raw power, the inTune i3 helps you correct real-world driving details. Built-in speedometer calibration recalibrates your speedometer after tire size or gear ratio changes, keeping your readings accurate. Combined with improved throttle response and drivability, the result is a vehicle that feels sharper and more responsive every time you get behind the wheel.
Fitment
Designed for 2017 or newer GM cars and trucks — Cadillac, Chevrolet, and GMC — equipped with the 4.3, 5.3, 6.0, or 6.2 gasoline engine. This is a gasoline-application programmer. Compact and easy to store, the unit measures 6″ long by 5″ wide by 2.5″ deep and weighs approximately 1.5 lbs. Note that this device is not video capable, does not offer in-cab monitoring, and does not require an AC adapter. California Proposition 65 warning applies.












