Functional solution for vehicles with larger tyres

Put the finishing touch on your lifted vehicle with Rough Country’s Speedometer Calibration Device! This easy-to-use Speedometer Calibrator helps you quickly and easily reprogram your vehicle’s speedometer to match the output of your larger tires. Your vehicle's computer is designed to track the speed based on your stock tire height. When upgrading to larger tires, there will be a discrepancy between your actual speed and the readout on your speedometer. This plug and play device connects directly to your vehicle’s diagnostic link connector port and in just a few short minutes your speedometer reads true again! Rough Country’s speedometer calibration devices don’t just simply change your in-dash readout, they update your vehicle’s ECM, ensuring accurate shift points and proper electronic stability control. Finally, you can get an affordable and accurate speedometer calibration with an easy and intuitive setup process! This device can also easily read and check all diagnostic codes to help you manage “check engine light” and “service needed” messages, and also includes a function to reset the speedometer back to stock prior to servicing the vehicle.

Specs:

    Proudly made in the USA
    Resets your speedometer to accurate readings for larger tires
    Easy plug and play connection
    Updates OE ECM shift points to accommodate larger tires
    Recalibrates electronic stability control to work with larger tires
    Reads diagnostic codes like "check engine light"
    Option to return to stock settings

In the box:

    Speedometer recalibrator
    USB update cable

Notes:

    Fits gas models ONLY
    Does NOT fit Diesel models
    One set can be used with one car ONLY, then it's blocked for any other