Not sure which 2006 Hummer H2 Performance Chips & Programmers are right for you? We have over 3535 customer reviews, with an average rating of 4.5, to help you find exactly what you're looking for. Here's what some of our customers have said:
"easy to install and program. a noticable increase in acceleration. have not yet driven enough to tell if there is any increase in fuel ecconomy. it would be helpful if the directions included how to set up for different performance settings.ie; best fuel ecconomey, towing/ not towing, or pure power." —Wayne J from Yulee, FL bought a Hypertech Max Energy Programmer for a 2006 Hummer H2.