Perfection Hy-Test Co Inc., doing business as Perfection Clutch Company, engages in the development, manufacture, and supply of automotive clutch systems. Its products include clutch kits, clutch hydraulics, and flywheels. The company also provides proprietary designed products, such as OE self-adjusting clutch kits alternatives, performance clutch kits, high clamp loads, pre-fill clutch hydraulics, integrated bleeder valves, and aluminum bodies. It serves aftermarket installers, such as professional technicians.