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2010 Hummer H3 Power Programmers & Performance Tuners

Needing more performance from your 2010 Hummer H3? Our selection of Power Programmers & Performance Tuners can get your 2010 Hummer H3 where you need. For fun daily or weekend driving, Power Programmers & Performance Tuners can be the next piece of the puzzle for your Hummer H3's performance. Power Programmers & Performance Tuners designed specifically for 2010 Hummer H3 and easy installation. See thousands of reviews from Hummer H3 owners like yourself across all our Power Programmers & Performance Tuners, and competitive warranties on all 2010 Hummer H3 Power Programmers & Performance Tuners.
Our Power Programmers & Performance Tuners designed for 2010 Hummer H3s are backed by our 1-year lower price guarantee. If you find Power Programmers & Performance Tuners for your 2010 Hummer H3 elsewhere, we'll beat that by $1. Bring your Hummer H3 to the performance level it should have left the Hummer factory with using Power Programmers & Performance Tuners. Feel free to call us with any questions on what 2010 Hummer H3 Power Programmers & Performance Tuners are best for your needs!
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Customer Reviews

Hypertech Max Energy Programmer

Hypertech Max Energy Programmer for 2008 H3 Hummer 3.7L

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. View more reviews...
Posted By Shawn J (CLOVIS, CA) / August 13, 2014
2008 Hummer H3
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DiabloSport inTune i3 Tuner

DIABLOSPORT i3 FOR 2012

I got the programmer to adjust the cooling fan temp setting and turn off the MDS. It has done just that, my engine temp is running just right and the MDS is off. MDS is the best example of over engineering I can think of. View more reviews...
Posted By john k (theodore, AL) / May 21, 2021
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DiabloSport Trinity T2 EX Tuner

Larry Adams, Old dog new tricks

I bought a 2013 CTS coup with a V-6 engine about 320hp new for my wife, it runs OK but not like the CTS-V's. So I wanted to see what would happen with a turner and bought this Diablo, I really like the gages it's like the "heads up" my GMC Denali has. I the first tune I loaded (the modified stock) did not impress me, so I loaded the 91 octane program. I AM IMPRESSED! The car is faster in automatic but, in automatic stick shift you really feel it. Buy one and try it. View more reviews...
Posted By Larry G (Bakersfield, CA) / August 5, 2020
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