We offer the best performance chips for Hummer cars! Our chips add power and save you gas! Please review our selection of Hummer Chips below and choose your model! We have the absolute best Hummer performance modules. Our chips are guaranteed to fit your vehicle, and engineered to improve your Hummer's' engine performance. You will love your new Hummer Chip. ACD is the absolute best supplier of Hummer Performance Chips . Our power modules will enhance your vehicles overall feel when driving. The reason our Hummer Power Chips are the best is because we manufacture them in ourselves, in the U.S.A! We carry chips for all Hummer models from 100 to TT! We guarantee our chips will be the best upgrade you could ever do to your vehicle!