~(1 lbs. 8X5X2)~ 97-04 Gm 5.7L Lsi 00-05 Gm 3.8L In-Line Speedometer Calibrator Module

This simple plug-and-play module recalibrates the speedometer and odometer for larger tires (up to 54 inches) or non-stock rear-end gears, ensuring accurate mileage readings and correct shift points. It also reads and clears diagnostic trouble codes (DTCs). It offers the same functions as Hypertech's Max Energy programmers but without the tuning capabilities. It's internet updateable and comes with a USB cable and software for updates. The device can be used on one vehicle at a time and must be returned to stock settings before being used on another vehicle or before taking the vehicle in for service.