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1999 GMC Yukon Performance Chips & Programmers

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Latest Customer Reviews

Jet Performance Programmer Reviews


Very Happy with Jet Performance Programmer

Reviewed By Mark D (Tinley Park, IL) Reviewed for a 1999 GMC Yukon —6/7/2007 12:42 PM

I gained 3 mpg towing my travel trailer. I also have better performance from my truck. I only wish I was able to adjust the engine settings myself instead of having to use Jet's built in engine settings.

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Jet Performance Module Reviews


Amazing, Inexpensive Real Power!

Reviewed By Robert L R (VALLEY, NE) Reviewed for a 2000 GMC Yukon —2/12/2016 9:15 AM

This is by far the first, best upgrade I've made to my Denali! Fairly easily installed (no thanks to GMC) and my 5.7 Vortec started right up with no codes. I experienced immediate increases in throttle response and overall power and drivability. Unbelievably, after a week or so of driving the vehicle, the power and responsiveness approved again! Puts me in mind of the old EPROM chips. I highly recommend this product to anyone looking for low dollar extra horses and low-end torque !

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TruXP Xtune Performance Tuner Reviews


Tuner works fine

Reviewed By Keith B (New Berlin, WI) Reviewed for a 2008 GMC Yukon —9/4/2015 5:07 PM

The tuner works fine on my 5.3L GMC, but I was unable to get the Software to work, even after contacting Edge the maker of this product. I really only wanted to be able to disable the Active Fuel Management, but this unit does so much more.

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