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GMC Sierra Speedometer Calibrators

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Latest Customer Reviews

Hypertech Speedometer Calibrator Reviews


recal speedometer

Reviewed By Eddie J (Harriman, TN) Reviewed for a 2007 GMC Sierra —8/6/2015 1:01 PM

product arrived in short time had to get update but tech support helped right away no problems. checked speed against GPS and distance markers shows to be right on. good product

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Superchips FlashCal F5 Calibration Tool Reviews


Easy for dummies

Reviewed By Michael W (FLAGLER BEACH, FL) Reviewed for a 2017 Jeep Wrangler —3/27/2018 3:35 AM

This device does exactly what it says it will do with ease. I set my new tire size and it worked perfectly and also fixed the shifting points on the auto trans. It does a bunch of other stuff that's useless to me but I think I will soon upgrade it to do some engine tuning. Expensive but the best of the few options available. Really hate computer engines. Miss the days when I was able to repair my vehicles:(

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