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GMC Jet Performance Chips & Programmers

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Latest Customer Reviews

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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Jet Performance Programmer Reviews

Easy installation and performance difference

Reviewed By Scott S (Williamsville, IL) Reviewed for a 2016 GMC Sierra —10/29/2013 6:09 AM

The installation was straight forward with easy to follow directions. I'm not seeing any difference in mileage, but I can tell, by the seat of my pants, that there is improved acceleration and firmer shift points. I've calibrated with the 87 octane parameters. I may try the 89 octane calibration as I can get that fuel for the same price as the 87.

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