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For most late model Mustangs, a Speedometer Calibrator is the perfect way to correct your speedometer reading after a gear or tire diameter change. A Mustang Speedometer Calibrator allows you to maintain accurate speedometer readings with virtually any combination of rear tire size and gear ratio.

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Brothers Performance sells aftermarket performance automotive parts for a wide range of vehicles. Brothers Performance is not sponsored, affiliated, or otherwise connected in any way to any of the manufacturers named on our website or promotional materials. Brothers Performance’s use of any registered trademark is for reference purposes only and all trademarks are the property of their respective owners. Including but not limited to trademark owners Ford Motor Company, Roush Enterprises, Saleen Incorporated, General Motors Company, FCA US LLC, Toyota Motor Corporation, and Nissan Motor Company. This includes any of their trademark terms such as, but not limited to Mustang, Camaro, Charger, Challenger, F150, Ram, Cobra, Bullitt, Mach1, GT500, GT, S281, SS, EcoBoost, R/T, Magnum and Hellcat.

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