Speedometer Calibrator | Multiple Makes & Models (Jeep/Ram)

Restore Accuracy After Bigger Tires: Put the finishing touch on your lifted ride with Rough Country's Speedometer Calibration Device. Designed for larger tire setups, this easy-to-use calibrator ensures your speedometer displays true readings - no more guessing your actual speed.

Plug-and-Play Simplicity: Installation is quick and hassle-free. Just connect the device to your vehicle's Diagnostic Link Connector Port and in minutes your speedometer, shift points, and stability control are all recalibrated to factory precision.

Optimized Performance and Control: Unlike simple readout changes, Rough Country's calibrator updates your vehicle's ECM to maintain accurate shift timing and reliable electronic stability control, keeping your driving experience smooth and safe.

Built-In Diagnostic Reader: Manage "check engine" and "service" lights with ease. The calibrator reads and clears diagnostic trouble codes and even allows you to return to stock settings whenever needed - perfect before servicing your vehicle.

Reliable and Backed by Warranty: Enjoy peace of mind knowing your investment is protected by Rough Country's 1-Year Warranty. Get professional-grade calibration and full system compatibility at an unbeatable value.