1999-2002 Nissan Skyline GT-R Stage 1 Single Sprung Organic Clutch Kit by XClutch XClutch Stage 1 organic upgrades have been designed for performance street applications where driveability is critical. All Stage 1 clutch kits utilize an organic friction material which offers the best driveability in the range. The discs are available in a wide variety of configurations including sprung, rigid, and steel-backed depending on the specific vehicle. Stage 1 kits include a heavy-duty pressure plate with increased clamping force for improved torque capacity and each kit has been designed and developed to offer the best balance between pedal effort/feel and torque capacity for street vehicles. Features Alignment Tool Included: Yes Clamping Force % Increase: 27 Clutch Disc Diameter: 9 13/16 in. Disc Material: Organic Disc Type Sprung Solid: Sprung Flywheel Bolts Included: Yes Flywheel Included: Single Mass Flywheel Included: Single Mass Friction Surface Configuration: Flat Input Shaft Diameter: 1 in. Input Spline Quantity: 24 Maximum Torque: 450 lb Pilot Bushing Included: Yes Pressure Plate Bolts Included: Yes Recommended Use: Street Use Release Bearing Included: Yes Spline Grease Included: Yes Benefits Improved Clutch Performance and Feel Applications 1999-2002 Nissan Skyline GT-R What\’s In The Box? 1 – Stage 1 Single Sprung Organic Clutch Kit Warranty XClutch offers a limited 12-month/12,000 mile warranty on this product