BMW 428I N20 extreme load kits for use only with SPEC billet flywheels Year Span 2014-2016 Performance Clutch Kits Product Number Torque Capacity Pricing Choose Clutch Single Stage 1 Product Number SBN201-2 Torque Capacity 377 Pricing $759.00 Stage 2 Product Number SBN202-2 Torque Capacity 430 Pricing $860.00 Stage 2+ Product Number SBN203H-2 Torque Capacity 482 Pricing $899.00 Stage 3 Product Number SBN203-2 Torque Capacity 513 Pricing $799.00 Stage 3+ Product Number SBN203F-2 Torque Capacity 595 Pricing $979.00 Stage 4 Product Number SBN204R-2 Torque Capacity 513 Pricing $0.00 Stage 5 Product Number SBN205 Torque Capacity 722 Pricing $979.00 None Not Available Pricing Flywheels Product Number Pricing Choose Flywheel Aluminum Product Number SBN20A Pricing $795.00 Steel Product Number SBN20S Pricing $714.00 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