RAM Clutches 98882HD Powergrip HD Clutch Set is designed for Street and Competition car performance up to 650-Horsepower. RAM Clutches Powergrip Clutch Sets are engineered to meet the challenges of power levels moving up to and beyond 500-Horsepower with a combination of Organic and Metallic Disc Friction Surfaces that effectively increase the clutch capacity to the 650-Horsepower level. The 8-Spring Hub is equipped with RAM Clutches Polycoil Damper Springs encapsulated in polyurethane. This Polycoil Damper Spring can handle three times the shock load of just the coil spring, and is standard in all RAM Clutches Competition Discs. The RAM Clutches Competition Pressure Plate in this Set provides 30-Percent more clamp pressure than stock units, and meets SFI specifications. At this high level of performance, RAM Clutches Powergrip Clutch Sets provide surprisingly good driving characteristics with smooth, comfortable driver control. Sets include Pressure Plate, Disc, Release Bearing, and Alignment Tool unless otherwise noted. RAM Clutches are the Champions Choice.