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GMC Yukon XL Hypertech Performance Chips & Programmers

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Latest Customer Reviews

Hypertech Max Energy Programmer Reviews


2004 gmc yukon xl denali 2500

Reviewed By shane f (Altoona, PA) Reviewed for a 2004 GMC Yukon XL —5/30/2015 5:13 AM

This programmer functioned as intended. It boosted horsepower about 10% which raised my average mpg by 21%. Three extra mpg may not seem like much, but when you're averaging 14 it really helps overall.

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Hypertech HyperPAC Reviews


Met Expectations

Reviewed By Lernes H (Woodbridge, VA) Reviewed for a 2002 GMC Yukon XL —7/20/2010 8:18 PM

-idiot proof installation -tremendous flexibility -improved performance -gadget lovers dream

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Hypertech Speedometer Calibrator Reviews


Does what it says it will do

Reviewed By Jason R (Forestville, NY) Reviewed for a 2015 Ford F-150 —4/27/2017 4:46 AM

If getting your speedometer to read correctly after changing to larger tires is a must, like it is for me, than this is the right tool. Just be prepared to make multiple adjustments. I'm running 35" tires and played around with the tire size setting until the calibration thinks I'm running 33.25" tires. In the end I don't care what the calibration thinks I'm running as long as the speedometer is dead on.... and now it is. So I recommend this highly just be prepared to make a lot of adjustments.

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