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GMC Yukon XL Superchips Performance Chips & Programmers

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Latest Customer Reviews

Superchips Cortex Programmer Reviews


Great Product

Reviewed By John C (Stamford, CT) Reviewed for a 2004 GMC Yukon XL —6/19/2012 9:49 PM

I own a 2004 Yukon XL Denali and initially it could not communicate with the car; however, after 5 minutes on the phone with a Superchip representative I found out what fuses to pull and easily tuned my truck. It is now running tip-top shape in performance mode and in gas saver mode, responding beautifully with 3mpg increases. Thanks AutoAnything!

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Superchips Flashpaq F5 Tuner Reviews


3/4 Suburban, 6.0

Reviewed By Rob D (DOUSMAN, WI) Reviewed for a 2008 Chevy Suburban —1/5/2017 6:54 AM

Easy to install. Noticed increased power right away. Acceleration and shift points are great. Haven't switched program to tow mode yet.

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