SL-C (Rapier,Aspira) SL-C GM 9-bolt LSx/LS-9 to Porsche 996/997 turbo transaxle Year Span 2000-2013 Comments GM LS engine with Porsche 996/997TT gearbox. Performance Clutch Kits Product Number Torque Capacity Pricing Choose Clutch Single Stage 1 Product Number SP841-4 Torque Capacity 525 Pricing $0.00 Stage 2 Product Number SP842-4 Torque Capacity 600 Pricing $0.00 Stage 2+ Product Number SP843H-4 Torque Capacity 670 Pricing $0.00 Stage 3 Product Number SP843-4 Torque Capacity 715 Pricing $0.00 Stage 3+ Product Number SP843F-4 Torque Capacity 830 Pricing $0.00 Stage 4 Product Number SP844-4 Torque Capacity 715 Pricing $0.00 Stage 5 Product Number SP845-4 Torque Capacity 1001 Pricing $0.00 None Not Available Pricing Flywheels Product Number Pricing Choose Flywheel Aluminum Product Number SGTMA-9 Pricing $499.00 Steel Product Number SGTMS-9 Pricing $459.00 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