The Flashcal is designed to help calibrate for your truck's large aftermarket tires, read and clear trouble codes, and more. Includes real time data logging and monitoring. If you are a 2019 Ram 5.7L New Body truck owner who is looking for a device to help calibrate for your large aftermarket tires, read/clear trouble codes and more, then look no further. The Flashcal for Truck is a product designed to give features and calibration tools to truck owners at a great price. The days of clunky, outdated calibration tools are over. Flashcal has trucks covered and the market cornered with quality and pricing that can't be matched. Features: Calibrates your 2019-2020 Ram 1500 to turn it into a superior off-road machine Corrects speedometer for tire upgrades between 25' to 42' Recalibrates factory speedometer to correct for various tire sizes and gear ratios Speed and rev limiter options Tire-pressure monitoring system (TPMS) options Reads and clears diagnostic trouble codes Digital battery voltage display Real time data logging and monitoring Made in the USA Note: Not all features or monitored parameters are available for all applications. Available features and parameters will pop up automatically on the display once the Flashcal is plugged into your 2019-2020 Ram 1500 .