Hummer H1 Programmers & Tuners
Extend your Hummer H1's performance and horsepower with programmers from Auto Accessories Garage. Adjust your Hummer H1's engine and transmission settings to offer more power, torque, and efficiency. When you have mods like a Hummer performance air intake or exhaust system, a chip helps sync them all together. Go with Auto Accessories Garage - rugged Hummer H1 programmers can be yours. Our 2 Hummer H1 Power Programmers and Control Modules reviews have an average rating of 4.5 out of 5 stars.