Take total control over your rig's performance when you install H1 Engine tuners & modules. Hummer H1 Performance Monitors mount directly to your dashboard, making it easy to clock your 1/4-mile time, measure your horsepower and acceleration, and more.
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Check out AutoAnything for a huge selection Hummer H1 performance Tuners. We only carry the best names in the game, and we always sell them for the lowest prices around. In fact, we back all H1 Programmers with our 1-year lower price guarantee. And, we ship your Hummer accessories for free.