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2003 Hummer H2 Power Programmers & Performance Tuners

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Latest Customer Reviews

DiabloSport PC Interface - USB Cable Kit Reviews


Awesome piece of equipment but not for the novice.

Reviewed By Randy L (Orlando, FL) Reviewed for a 2003 Hummer H2 —6/21/2011 7:53 AM

Awesome piece of equipment but not for the novice. This tuner has the ability to fine tune almost every aspect of your vehicle. Without knowledge of the items it can tune for you I suggest: either use the installed program or download a proven program, or change it 1 increment at a time and thoroughly test the tune before adjusting again, just to avoid costly damage no covered by any warranty. Monitor the settings with the unit and create a log file and keep it for reference. With oversize tires, cold air induction, and cat back exhaust and predator i am able to improve my gas mileage by over 4.4 mpg with in town driving. And performance thru the roof :-)) AUTOANYTHING was GREAT TOO!

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Jet Performance Programmer Reviews


GOOD

Reviewed By JESSE B (Whittier, CA) Reviewed for a 2003 Hummer H2 —6/22/2009 11:23 PM

ALL SETTINGS ENHANCE PERFORMANCE GAS MPG NOT AS GOOD AS FLASHPAQ SUPERCHIP

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Superchips Flashpaq F5 Tuner Reviews


F5 Tuner

Reviewed By anthony l (MARTINEZ, CA) Reviewed for a 2007 Hummer H2 —2/2/2017 11:27 AM

I like how much faster the F5 is compared to the F4 . It has better graphics than the F4 and is just a good product overall and it made my truck a lot better to drive with more power and better shifts. I have a cold air intake , cat back exhaust which makes this tuner work even better.

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