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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 Max Energy 2.0 Programmer Reviews


Reviewed By Michael H (HAMILTON, OH) Reviewed for a 2009 Chevy Silverado —10/8/2016 3:57 PM

Bought this to get rid of the AFM so far it is Great no delayed throttle response anymore. I have my truck set up for premium fuel it runs great like driving a different truck no comparison. Can't beat it for the price be careful when looking at other programmers this one has a lifetime warranty most others only have 1 year. That just tells me that this company stands behind there product.

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