Hypertech 742500 Speedometer Calibrator Review

Allows you to re-program the speedometer to match tires and ring and pinion sets for correct speeds. Ensures proper shifting with non-OEM tires and gear ratios. Ability to read and clear the check engine lights and service needed messages. Return to stock if you have stock winter tires or plan on selling your vehicle with stock tires. Always stay update to date with ability to get new updates with Hypertech software and internet updates for your device. Fit type: Vehicle Specific.