Features:

• Adjusts Speedometer
• Adjusts Tire Size
• Adjusts Gear Ratio

The JET Accu-Speed interacts with the vehicle speed sensor (VSS) on your SUV / Truck. In these vehicles, the speed sensor sends pulses to the computer to indicate vehicle speed. The computer uses these signals to set speedometer calibration and transmission shift points based on the number of pulsed per revolution being sent to it from the VSS.

By changing the tire size and / or gear ratio the numbers of pulses to the computer are changed. Changing these pulses results in the computer reading that the vehicle is at a different speed than it really is. As a result, the Speedometer calibration is not correct and the transmission shift points are not calibrated correctly.

The Accu-Speed corrects these problems by intercepting the pulses from the VSS and recalibrating them to proper values and send the correct signal to the computer correcting your speedometer to within one percent accuracy. Just install it in line with your computer and you're ready to recalibrate.

Installation is easy--the JET Accu-Speed plugs into your vehicle speed sensor and is adjusted with just a turn of a switch. Easy install with complete instructions.