Reviewed By David B (Lockport, NY) Reviewed for a 2009 Hummer H3 —3/30/2015 12:08 PM
Saw a 30 mile increase with the first tank of fuel...it will pay for itself in 6 months...better fuel economy with greater performance!!!
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" !
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.