Porsche Boxster S 3.4L 6sp for use with billet single mass flywheels Year Span 2007-2008 Performance Clutch Kits Product Number Torque Capacity Pricing Choose Clutch Single Stage 1 Product Number SP871S Pricing $917.00 Stage 2 Product Number SP872S Pricing $1,038.00 Stage 2+ Product Number SP873HS Pricing $1,039.00 Stage 3 Product Number SP873S Pricing $917.00 Stage 3+ Product Number SP873FS Pricing $1,049.00 Stage 4 Product Number SP874 Pricing $917.00 Stage 5 Product Number SP875 Pricing $1,079.00 None Not Available Pricing Flywheels Product Number Pricing Choose Flywheel Aluminum Product Number SP87A Pricing $899.00 Steel Product Number SP87S Pricing $929.00 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