TruSpeed Speed Sensor Recalibrator

The TruSpeed Speed Sensor Calibrator from Samrás Ehf. is a must for any vehicle equipped with tires that are taller or shorter than stock. It corrects the speedometer/odometer readings (as well as other important speed-related vehicle functions) on most vehicles equipped with an electronic (non cable-driven) speedometer, the speed signal sent to the engine, powertrain, and anti-lock brake control modules. Besides the obvious, these modules affect fuel delivery, engine timing, and automatic transmission shift points. The module also eliminates speed signal related reductions in engine performance and fuel economy, as well as related changes in exhaust emissions.