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2010 Hummer H3 Performance Chips & Programmers

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Latest Customer Reviews

Hypertech Max Energy Programmer Reviews


Hypertech Max Energy Programmer for 2008 H3 Hummer 3.7L

Reviewed By Shawn J (CLOVIS, CA) Reviewed for a 2008 Hummer H3 —8/13/2014 11:57 PM

I wanted something that I could program myself instead of sending of my PMC to someone eles to program. I was able to change my tire size to compensate for the 33in tire I installed, also was able to change my shift point and shift firmness as well. It also came with two performance setting, an 87 and a 91 octane. I used the 87 octane in my 3.7 liter and I got a boost in performance and mileage as well. Which made me very happy.

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Jet Performance Module Reviews


Questioning whether to buy it?

Reviewed By Cameron S (PENSACOLA, FL) Reviewed for a 2007 Hummer H3 —11/20/2012 5:55 PM

For GM trucks it's difficult to install due to the small space (30 min. install). After 2 days I noticed performance increase- smoother shifting at different rpm points, more horsepower. DON'T BUY THIS TO SAVE FUEL- it might save you 1 mpg if you're lucky and drive normal, but you'll be wanting to "test" it out so much you'll start loosing fuel mileage. I have this with a JET MAF sensor and a K&N cold air intake all recently installed- total extra mpg w/ everything 3mpg but a big notice in HP.

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DiabloSport inTune I-1000 Tuner Reviews


2014 Sierra 5.3

Reviewed By Ronald R (Boise, ID) Reviewed for a 2014 GMC Sierra —12/22/2014 7:25 AM

Truck is a lot more fun to drive now. Throttle is more responsive, holds gears longer under full throttle, and shifts do feel firmer. When getting on the gas after a turn, the truck seems to be in the right gear and accelerates better. Overall I am very happy with it.

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Year Range For Hummer H3 Performance Chips & Programmers