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GMC Yukon XL Hypertech Performance Chips & Programmers

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Latest Customer Reviews

Hypertech Max Energy Programmer Reviews


GREAT PRODUCT

Reviewed By jimmy h (Little Rock, AR) Reviewed for a 2012 GMC Yukon XL —11/8/2012 11:00 AM

AFTER INSTALING THE PROGRAM IT HAS RAISED MY FUEL MILAGE UP TO 17-18 IN TOWN AND IT DOES NOT SOUND LIKE YOU ARE DRAG RACEING SOMEONE WHEN YOU TRY TO ACCELARATE IT ONLY SHIFTS DOWN ONE GEAR INSTEAD OF THREE AND TACKING OUT.

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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


Hypertech Speedometer Calibrator

Reviewed By Russell P (EL PASO, TX) Reviewed for a 2014 Toyota Tundra —4/15/2015 3:14 AM

Went from Stock to 35s. Really easy to put on, truck shifts smoother, speed is perfectly on with two GPS and I also had my wife drive her car next to me and tell me how fast she was going. I actually gained 1.5 MPG, don't know how or why but it did. Tucks right behind the dash and I left the usb in it so I could change it if need be without taking the dash apart again

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