Not sure which 2006 Hummer H1 Performance Chips & Programmers are right for you? We have over 11 customer reviews, with an average rating of 4.5, to help you find exactly what you're looking for. Elemer T from Las Vegas, NV said, "Reprogrammed my 2006 Hummer H1 and I was very,very pleased with the results. Great product, excellent performance, I noticed immediate power gain upon installation, big difference in every day driving, hard to keep my foot out of it.Thank You Guys!!!"
Year Range For Hummer H1 Performance Chips & Programmers