Nissan 240SX 254mm upgraded diameter SPEC SR/RB units for the KA (must use SPEC billet flywheel) Year Span 1989-1998 Performance Clutch Kits Product Number Torque Capacity Pricing Choose Clutch Single Stage 1 Product Number SN231 Torque Capacity 385 Pricing $459.00 Stage 2 Product Number SN232 Torque Capacity 439 Pricing $585.00 Stage 2+ Product Number SN233H Torque Capacity 494 Pricing $519.00 Stage 3 Product Number SN233 Torque Capacity 525 Pricing $460.00 Stage 3+ Product Number SN233F Torque Capacity 610 Pricing $619.00 Stage 4 Product Number SN234 Torque Capacity 525 Pricing $460.00 Stage 5 Product Number SN235 Torque Capacity 740 Pricing $620.00 None Not Available Pricing Flywheels Product Number Pricing Choose Flywheel Steel Product Number SN42S Pricing $429.00 None Not Available Pricing Specialty Products Billet Aluminum Pressure Plate Option $199.00 Substantially reduces rotating mass, increases power and throttle response , adds infinite rebuildability Questions? Give us a call. 1-800-828-4379