BMW Z4 2.5L Year Span 2003-2004 Performance Clutch Kits Product Number Torque Capacity Pricing Choose Clutch Single Stage 1 Product Number SB471 Pricing $689.00 Stage 2 Product Number SB472 Pricing $849.00 Stage 2+ Product Number SB473H Pricing $909.00 Stage 3 Product Number SB473 Pricing $0.00 Stage 3+ Product Number SB473F Pricing $919.00 Stage 4 Product Number SB474 Pricing $0.00 Stage 5 Product Number SB475 Pricing $0.00 None Not Available Pricing Flywheels Product Number Pricing Choose Flywheel Aluminum Product Number SB07A Pricing $675.00 Steel Product Number SB07S Pricing $649.00 None Not Available Pricing Specialty Products Billet Aluminum Flywheel Replacement Friction Plate with Fasteners (Included on Flywheel) $89 Diamond ground, includes self-locking fasteners Questions? Give us a call. 1-800-828-4379