JET Speedo Pro Programmers

The JET Speedo Pro Programmer is designed for the driver who has changed tire size or gear ratios, or both, and wants to correct the speedometer and automatic shift points which are controlled by the vehicle computer. The Speedo Pro does not contain any engine tuning functions, but does include a scan tool to read and clear any engine diagnostic trouble codes and is also upgradeable to the full Performance Programmer version.