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Hummer H3 Hypertech 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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Hypertech Speedometer Calibrator Reviews


Works perfectly

Reviewed By Christopher M (BRISTOW, VA) Reviewed for a 2005 Ford Excursion —5/15/2017 8:56 PM

Used on my 2005 Excursion with 37's and now my speedometer is spot on.

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Hypertech Max Energy 2.0 Programmer Reviews


Great product and very helpful tech support

Reviewed By Joe T (ERIE, PA) Reviewed for a 2016 Chevy Tahoe —5/9/2017 5:15 AM

I was a bit nervous after reading the instructions and warnings about making sure that all devices that use power from the car battery are turned off and/or fuses for them are pulled so I called the Hypertech tech support guys to make sure I wouldn't screw up. The instructions were very clear and the programmer worked perfectly. I was able to turn off the AFM system so my Tahoe no longer goes into V4 mode. I get better gas mileage & more horse power.

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