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Hypertech® high performance tuning products give you a true uninterrupted shot right to the heart of your Hummer engine management system without even going under the hood.
As vehicles get more and more advanced as technology arises, today's tuners and hot rodders are searching for new ways to extract more and more and more power, and Hypertech sets the pace. Tune your Hummer up to your heart's desire—everything from transmission shift points to ignition timing—by using a Hypertech tuner. The old days of simple, heavy-metal bolt-on power no longer does the trick because the modern, computer-controlled vehicles are more complex than ever with the help of the leader in technology for high-performance engine tuning - Hypertech.