Speedometer Calibrator Inline Toyota Tundra 4WD (2014-2021) Rough Country Tire & Wheels - Wheel Accessories - Tire & Wheel Accessories For use w/ Ram-Air System:

For use w/ Ram-Air System: 2014-17 Chevy/GMC and 2013-18 Ram

By staging the second pump

AT/MT cars with original air conditioning

1 Degree increments every 100 rpm

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Speedometer Calibrator Inline Toyota Tundra 4WD (2014-2021) Rough Country Tire & Wheels - Wheel Accessories - Tire & Wheel Accessories For use w/ Ram-Air System: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