Hays street clutch discs are designed to provide clean, smooth engagement and provide a significant performance increase without sacrificing street ability. These discs feature organic friction material that is riveted to a Marcel backing, and a sprung center hub to absorb driveline torque, eliminating shock and vibration to ensure chatter-free engagement.An excellent upgrade from the stock unit, the Street Clutch far exceeds OE specifications in materials, construction, and performance. Light pedal pressure and quick release make this diaphragm clutch the most popular choice for today's street driven vehicles.