Speedometer Calibrators & Calibration Tools
Having the correct speed showing on your late-model vehicle's speedometer is very important. This is especially true when you change the tire size or gear ratio, which will cause the speedometer to be inaccurate. To solve this problem, JEGS offers a great selection of car and truck speedometer calibration tools from high quality vendors like DiabloSport, Edge Products, Hypertech, Jet Performance, and others. Each tool is made from high quality components and assembly to provide the best MPH accuracy. Browse our full line of speedometer calibrators and calibration tools that will properly adjust your vehicle's indicated speed.