Exedy Heavy Duty Stage 1 Organic Clutch Kit Subaru STI 2004-2020 / Legacy GT Spec B 2006-2009The Exedy HD Stage 1 Clutch Kit is the preferred clutch for street and light horsepower track use. Drivability is similar to the stock clutch. Pedal efforts will be slightly higher because of the higher clamp loads that the pressure plate provides. All Exedy clutch discs have spring center dampers to reduce drivetrain shock. The Heavy Duty clutch has a higher clamping load compared to the normal Stage 1 clutches. Kit Includes: Clutch disc Pressure