Porsche Boxster 2.7L 6sp Year Span 2005-2008 Performance Clutch Kits Product Number Torque Capacity Pricing Choose Clutch Single Stage 1 Product Number SP871 Torque Capacity 365 Pricing $799.00 Stage 2 Product Number SP872 Torque Capacity 420 Pricing $899.00 Stage 2+ Product Number SP873H Torque Capacity 470 Pricing $919.00 Stage 3 Product Number SP873 Torque Capacity 500 Pricing $799.00 Stage 3+ Product Number SP873F Torque Capacity 583 Pricing $989.00 Stage 4 Product Number SP874 Pricing $799.00 Stage 5 Product Number SP875 Pricing $979.00 None Not Available Pricing Questions? Give us a call. 1-800-828-4379