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2003 GMC Yukon Performance Chips & Programmers

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Latest Customer Reviews

Bully Dog GT Platinum Tuner (49-State Legal) Reviews


2003 yokon 5.3

Reviewed By William L (Superior, WI) Reviewed for a 2003 GMC Yukon —9/10/2015 5:58 PM

WoW! I went from 12.5 to 16 in the city, using 91 oct on performance mode, shift points firm. Versus 87 oct in stock. It's how you drive it that matters. The driving coach is way cool. And it's fast too!

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Hypertech Max Energy Programmer Reviews


I'd buy it again

Reviewed By joe k (Davison, MI) Reviewed for a 2003 GMC Yukon —4/21/2014 8:17 PM

I like the Hypertech it was a little tricky to install the program but once I got it figured out....its well worth it...def noticed a difference.

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DiabloSport inTune i2 Tuner Reviews


Great tuner really woke up my Silverado

Reviewed By Lillian M (Lindenhurst, NY) Reviewed for a 2016 GMC Yukon —10/12/2016 4:56 AM

I think the Diablo Sport Tuner is a great investment for the money,it does everything they say it will do. And the menus are easy to navigate. It really woke up my Silverado, the multiple truck use is a nice option agreat s is being able to turn off the active fuel management

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