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2011 GMC Sierra Speedometer Calibrators

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Latest Customer Reviews

Hypertech Speedometer Calibrator Reviews


07 chevy 2500hd

Reviewed By John P (West Hartford, CT) Reviewed for a 2011 GMC Sierra —6/14/2011 4:47 AM

bought this for my new body 07 Chevy 2500hd and it couldn't have been any easier to use.. i only put 33" tires on it but it made a transmission noise when downshifting under throttle. this went on for months before i bought this calibrator. the very first drive after 5 minutes of calibration the noise was gone and the speedometer was back to normal. great product!

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Superchips FlashCal F5 Calibration Tool Reviews


Superchips FlashCal F5

Reviewed By Kade S (WICHITA, KS) Reviewed for a 2011 Jeep Wrangler —7/26/2017 8:18 AM

I bought it to calibrate the speedometer after getting bigger tires and changing gear sets in my jeep. It worked flawlessly and it took only a few minutes to use. The screen is very useful and the tool is straight forward and easy to use. It can reset and check engine light codes and many other things. I would definitely recommend this product to others.

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