Superchips Flashcal 2545 for 1999–2016 GM Gas & Diesel Trucks The Ultimate Calibration Tool for GM Truck Owners The Superchips Flashcal 2545 is the go-to calibration and control device for 1999–2016 GM gas and diesel trucks. Designed for truck owners who’ve upgraded tires, changed gear ratios, or simply want more control over factory settings, Flashcal makes vehicle calibration fast, simple, and precise—all without the need for complex programming or tuning. With its easy plug-and-play interface, Flashcal 2545 allows you to: Recalibrate your speedometer after installing larger tires or re-gearing your truck Adjust TPMS (Tire Pressure Monitoring System) settings for off-road tires or custom setups Disable AFM (Active Fuel Management) on equipped gas engines for consistent V8 power and sound Diesel and gas truck owners alike can also read and clear diagnostic trouble codes, making Flashcal an essential all-around tool for maintenance and customization. Compact, affordable, and built for everyday truck owners, the Superchips Flashcal 2545 delivers factory-level precision and user-friendly control in the palm of your hand. Whether you drive a Chevrolet Silverado, GMC Sierra, or another GM truck, Flashcal ensures your setup performs exactly the way you want it to. For 1999–2016 GM gas and diesel trucks, the Superchips Flashcal 2545 is the smart, simple, and effective way to take control of your truck’s configuration.