Speedometer Calibrator | Diesel | Ford F-150 (2021)/Super Duty (17-22) Speedometer Calibrator Rough Country #RCS90015T

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 tiresYour 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 speedometerThis 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 controlFinally, you can get an affordable and accurate speedometer calibration with an easy and intuitive setup process! This device also includes a function to reset the speedometer back to stock prior to servicing the vehicle. Includes a 1-Year Warranty.

Rough Country is proudly American-born and based. Our products are designed, engineered, tested, and assembled in the USA. Were committed to delivering the quality, reliability, and performance American drivers expect, whether theyre hitting the pavement or heading off the grid. While some materials are sourced globally, our foundation, focus, and operations remain right here at home.

• 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
• Option to return to stock settings
• 1-year warranty
• Emissions Certifications: Not for sale or use in California
• Installation Time: 5-10 minutes