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Hypertech Speedometer Calibrator Part #742500 Customer Reviews
2 Customer Reviews
Reviewed by Sean G (SANTA ROSA, CA) — Oct 31, 2013 11:51 AM
I purchased a mustang with aftermarket rims and the speedometer is fast by 20MPH. After some research, I decided to purchase the Hypertech speedometer calibrator. I programmed it for the nearest Tire O available in the list. After the calibrator successfully programmed my vehicle, the speedo is still fast by 20MPH. I've tried programming every tire O and gear ratio option available, but my speedometer is still fast by 20MPH. I contacted Hypertech and they are still looking into it.
Ships By 3/23
- What Do You Drive?
- Part #:742500