BMW Z4 30i (E89) for use with billet single mass flywheel Year Span 2008-2013 Comments Kits include billet, non-ratcheting pressure plate. Performance Clutch Kits Product Number Torque Capacity Pricing Choose Clutch Single Stage 1 Product Number SB071S-2 Torque Capacity 430 Pricing $629.00 Stage 2 Product Number SB072S-2 Torque Capacity 485 Pricing $699.00 Stage 2+ Product Number SB073HS-2 Torque Capacity 545 Pricing $719.00 Stage 3 Product Number SB073S-2 Torque Capacity 580 Pricing $699.00 Stage 3+ Product Number SB073FS-2 Torque Capacity 671 Pricing $799.00 Stage 4 Product Number SB074-2 Torque Capacity 580 Pricing $679.00 Stage 5 Product Number SB075-2 Torque Capacity 820 Pricing $829.00 None Not Available Pricing Flywheels Product Number Pricing Choose Flywheel Aluminum Product Number SB90A Pricing $630.00 Steel Product Number SB90S Pricing $689.00 None Not Available Pricing Specialty Products Enhanced Hybrid Option for Stage 2+ Kits $79.00 further enhances low speed drivability and wear lifeĀ Billet Flywheel Replacement Friction Plate Kit with Fasteners $79.00 Diamond ground, includes self-locking fastenersĀ Questions? Give us a call. 1-800-828-4379