If you are a 2019-2022 Ram 5.7L New Body style 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 The days of clunky, outdated calibration tools are over.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. Corrects speedometer for tire upgrades between 25- 40*Speedometer recalibration for gear /axle swaps TPMS Options Reads and clears diagnostic trouble codes Digital Battery Voltage Display Real-time Data Logging Real-Time Data Monitoring Upgradeable to Flashpaq Tuning ** *Features and options may vary based on year, make, & model.