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Hummer H3 Power Programmers & Performance Tuners

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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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Superchips Cortex Programmer Reviews


best increase for performance for the $

Reviewed By Terry S (Rochester, NY) Reviewed for a 2009 Hummer H3 —11/2/2009 11:13 AM

The ease of the installation is hard to believe. Then you start up your car , and away you go. The instant I took off in my hummer I had a huge smile on my face. I then took my daughter for a ride and watched her face as I gave my truck somme juice---and she said " dad what did you do to "Jake" [my trucks name} "? I told her about your programer, she said " AWESOME" !

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DiabloSport Trinity T-1000 Programmer Reviews


Great product for quick gains

Reviewed By Monty W (TYLER, TX) Reviewed for a 2014 Dodge Challenger —1/10/2017 8:45 PM

As soon as you get this, go through the instructions carefully and make sure to download and update all of the software. Truth is these things can sit on shelves or in warehouses and be out of date. After all of this is done it is easy to set up and go. This tuner has excellent features including a factory back up that can be installed back at any time. Once I installed mine, I noticed hp gains especially in gears 1-3. I have a 2014 Challenger Shaker with the 5.7 Hemi. Love it!

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