Engineered to handle the increased horsepower and torque of a modified engine, these Hays race performance clutch kits are the answer to clutch problems in today's muscle cars that are equipped with turbos or nitrous systems. Each kit contains a high performance diaphragm pressure plate to retain the factory pedal pressure. High performance clutch disc is used to increase the coefficient of friction for reduced slippage and greater holding power. Each kit includes the pressure plate, throwout bearing, disc, alignment tool and matching bolt kit.