Easily adjusts your speedometer/odometer after installing larger or smaller tires on your computer-controlled truck!
Installs in-line with the sensor and recalibrates signal sent to the computer
Corrects speed signal for engine, powertrain and ABS controls
2 settings for seasonal tire changes. Precise speed-signal calibration to within 1%. Easy to recalibrate for future tire and/or gear changes. Speedometer reading, ABS functions and transmission shift points are corrected for non-stock tire size. 4-wire installation.