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The DiabloSport inTune i3 Platinum GM 2017-19 is a professional engine tuning programmer designed for General Motors vehicles manufactured between 2017 and 2019. This compact handheld device enables owners and technicians to reprogram engine parameters for improved performance, fuel economy, and customization. The inTune i3 Platinum represents the advanced tier of Diablosport's tuning platform, offering sophisticated diagnostic and reflashing capabilities in a portable format that fits easily in a toolbox or vehicle.

Weighing just 0.8 pounds with dimensions of 5.75 x 2.3 x 6.45 inches, the programmer delivers professional-grade functionality without bulk or complexity. The inTune i3 Platinum connects directly to a vehicle's onboard diagnostic (OBD) port, allowing real-time communication with the engine control module (ECM). This wired connection ensures stable data transfer during the critical tuning and flashing process, protecting against interruption or corruption. The Platinum version includes expanded tuning options, live data monitoring, and access to Diablosport's comprehensive tune library specifically calibrated for GM platforms.

Performance enthusiasts, fleet managers, and professional tuners rely on the inTune i3 Platinum for 2017–2019 GM vehicles to unlock engine potential while maintaining factory reliability standards. Installation requires only OBD-II port access—no permanent modifications or splicing required. Users can load multiple custom tunes, revert to factory programming, and monitor live engine parameters such as boost pressure, knock detection, and fuel trim. The device is particularly valued for its ability to optimize both naturally aspirated and turbocharged GM engines, making it essential for anyone seeking precision control over their vehicle's performance characteristics.