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Latest Customer Reviews
Hypertech Speedometer Calibrator Reviews
Reviewed By Shane P (MOORE, OK) Reviewed for a
2015Chevy Silverado—6/10/2016 4:39 PM
Worked as advertised. My calculations say my tires are 34". With truck weight they measure about 33.5. That is the number I used and it put GPS spot on. Truck seems to be shifting back into 4 cal mode more regularly now helping to boast mpg. Worth the investment.