We like Hummers for getting through the snow or to pull a boat, but we usually leave the speed records to other GM products like the Corvette. The tuner Geiger seems to have a different view for this brick on wheels and is now offering a supercharger package for the Hummer H3 Alpha. It takes the 5.3-Liter V8 and raised the horsepower from 300 to 423.
Just so drivers have a fighting chance at not killing themselves or others, Geiger also offers six-piston 380x35mm disc brakes. There’s also a suspension pack for extra handling at speed, and Continental Cross Contact rubber to give extra on-road grip to the 4883 lbs. truck.
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