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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


Good in Performance only

Reviewed By Angel V (Lancaster, PA) Reviewed for a 2016 Ford F-150 —1/18/2017 8:49 PM

I installed the product my truck with 87oct and gain some power but no MPG, Switch to gas saver mode,did not feel any change over the 87oct. I finally put it on 91 Oct.and yesI felt a lot more power and better acceleration and torque, the only thing I have felt strange is that when I go slowly it gives me a weird squeal in transmission and I'm worrying a little. This product is very good in Performance Setup,for 87 and gas saver option I prefer let my truck in Stock Setup. IMOP.

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