Speedometer Calibrator | Inline | Chevrolet Silverado/GMC Sierra 2500HD/3500HD | 2017-2018

<p>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.<br /><br />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.<br /><br />This plug and play device connects directly to your vehicle's Diagnostic Link Connector Port and in just a few short hours 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.<br /><br />Finally, you can get an affordable and accurate speedometer calibration with an easy and intuitive setup process! This device can also includes a function to reset the speedometer back to stock prior to servicing the vehicle. Includes a 1-Year Warranty.</p>