Porsche Boxster 2.9L for use with OE dual mass flywheel Year Span 2009-2012 Performance Clutch Kits Product Number Torque Capacity Pricing Choose Clutch Single Stage 1 Product Number SP871-9 Torque Capacity 365 Pricing $945.00 Stage 2 Product Number SP872-9 Torque Capacity 420 Pricing $1,059.00 Stage 2+ Product Number SP873H-9 Torque Capacity 470 Pricing $1,079.00 Stage 3+ Product Number SP873F-9 Torque Capacity 583 Pricing $1,169.00 Stage 4 Product Number SP874-9 Torque Capacity 500 Pricing $960.00 None Not Available Pricing Questions? Give us a call. 1-800-828-4379