We make the best performance chips for GMCs! Vertex adds power and saves you gas everyday! We have the best GMC performance modules available. Our chips are guaranteed to work with your vehicle and are engineered to improve your GMC’s engine performance. You will love your new Vertex GMC Performance Module. Vertex is one of the only suppliers and manufacturers of GMC Performance Chips in the USA. Our power modules will enhance your vehicle's overall feel when driving. The reason our GMC Performance Modules are the best is because we manufacture them ourselves, in house, proudly in the U.S.A! We carry chips for all GMC models! We guarantee our chips will be the best upgrade you could do to your vehicle!