Speedometer Calibrator 07-18 Chevy/GMC 1500/2500HD/3500HD Rough Country Performance - Exhaust Systems High-Performance LEDs: Includes two 6

High-Performance LEDs: Includes two 6 Inch Slim Line Cree LEDs delivering an impressive 4

Ready for Bigger Tires: Unlock the look you want with room to run up to 31-inch tires when paired with proper wheel backspacing

5 Coil-Over shocks by BDS Suspension

Includes one BDS013201

Speedometer Calibrator 07-18 Chevy/GMC 1500/2500HD/3500HD Rough Country Performance - Exhaust Systems High-Performance LEDs: Includes two 6Put 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