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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

Took a little to get going but works well.

Reviewed By Paul S (BELLBROOK, OH) Reviewed for a 2016 Chevy Silverado —10/19/2016 5:55 PM

I am overall very impressed with the tunes. It took me about a week working with support to get the tuner working on my truck. The support staff was great to work with. The tuner is showing some MPG gains and it let me correct my spedo. The tuner also seems to hve added a bit of low endo power which I like. I dont tow but I do have the truck lived 3" with 33's.

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