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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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TruXP Xtune Plus Performance Tuner Reviews


Pleasantly surprised

Reviewed By drake l (Saint Paul, MN) Reviewed for a 2001 GMC Yukon —5/13/2018 4:19 PM

I was a little sceptical about buying this tuner because it was fairly inexpensive. After receiving it and trying it out I'm amazed how well it works for my 2001 denali. I tuner the mileage saver and so far I'm getting at least 2.5 miles to the gallon better. Can't wait to try the other functions..... If I were you I'd buy one

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Hypertech Max Energy Programmer Reviews


Easy to use

Reviewed By adam e (HILLSBORO, OR) Reviewed for a 2016 GMC Yukon —3/28/2017 11:00 AM

Device was very easy to use. Took a few times for computer to recognize to perform updates. Other than that no problems. Vehicle seems to be working great with updates.

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