Geiger’s Supercharged HUMMER H3
Tuesday, April 11th, 2006German-based American-car tuner Geiger has worked its magic on the Hummer H3, turning the rugged-looking but underachieving off-roader into a muscular mover.
A supercharger is a prime ingredient in Geiger’s tuning kit, boosting output on the H3’s anemic 3.5-liter five-cylinder to 325 horsepower and bumping torque to 320 pound-feet. Top speed climbs to 130 mph, while […]



