South Bend Stage 4 Extreme Clutch Kit For BMW - KF778-SS-X-SMF

This is a "build to order" clutch kit intended for cars with HP modifications exceeding the stage 3 parameters. The Race Engineered pressure plate is modified for maximum plate load. The discs are puck design with sprung and un-sprung options. Friction material options include Sintered Iron and Graphite Impregnated Ceramic. Engagement characteristics can be abrupt. Hydraulic systems may need enhancing for proper clutch separation. Single mass steel SFI approved flywheels are required for safety. Torque ratings are calculated at time of ordering.

Race Engineered Pressure Plates (SS) used in Stage 3 and 4 clutch kits:

These performance clutches deliver more transmittable torque and stability, longer life and superior thermal resistance. They also deliver noticeably better dynamics through higher clamp load when driving the vehicle to its limits.

Features:

• Pilot Bushing Material: Steel
• Pilot Bushing Included: Yes
• Input Spline Quantity: 10
• Clutch Disc Quantity: Single
• Input Shaft Diameter: 1.13
• Hub Style: Sprung
• Flywheel Included: No
• Disc Style: 4-paddle
• Disc Material: Ceramic
• Disc Diameter: 240
• Clutch Usage: Performance
• Alignment Tool Included: Yes
• Mounting Hardware Included: No
• Throwout Bearing Style: Standard
• Throwout Bearing Included: Yes
• Quantity: Sold as a kit
• Pressure Plate Style: Diaphragm