Stiegemeier Porting Services, located on South Old Highway 94, is a leading provider of supercharger porting and modifications. A factory-authorized EATON supercharger rebuilder, it carries genuine EATON parts. Its supercharger services include porting, front drives, maintenance, rebuild and repair, cylinder head porting, manifold porting, custom carburetor work, throttle body and plenum, fuel injector service, exterior show polishing, custom tuning and dyno service.