Not sure which 2004 Hummer H2 Performance Chips & Programmers are right for you? We have over 165 customer reviews, with an average rating of 4.5, to help you find exactly what you're looking for. Wade L from Tiki Island, TX said, "Very Easy to install, and so far to upgrade has been great. I would totally recommend this chip to other Hummer H2 and 6.0L engines."
Year Range For Hummer H2 Performance Chips & Programmers