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Speedometer Calibrators

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  • Hypertech Speedometer Calibrator

  • Superchips FlashCal Calibration Tool

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Latest Customer Reviews

Hypertech Speedometer Calibrator Reviews


Does what it says

Reviewed By Taylor M (MESA, AZ) Reviewed for a 2014 GMC Sierra —1/26/2015 9:06 PM

2014 GMC Sierra 1500. Fairly easy installation. Manual days you need to remove several fuses, but this is not necessary. Just make sure headlights are off, radio is off, and nothing is plugged into DC outlets. Did what it said!

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Superchips FlashCal Calibration Tool Reviews


GREAT Product...very easy to use.

Reviewed By Joshua R (STREAMWOOD, IL) Reviewed for a 2013 Jeep Wrangler —7/11/2014 5:02 AM

I have been running 33" tires instead of the stock 31" for the past year, and the shifting of the transmission was just not right in terms of shift points. I knew that with my plans to switch to 35" tires in the very near future would further amplify the issues with the shifting as well as traction control. So I bought this device to bring everything back within spec. It really did work well. I look forward to using it again next week when the 35's are mounted.

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