Honda Civic Si 9inch diameter for SPEC flywheel Year Span 2012-2015 Performance Clutch Kits Product Number Torque Capacity Pricing Choose Clutch Single Stage 1 Product Number SH741-9 Torque Capacity 271 Pricing $489.00 Stage 2 Product Number SH742-9 Torque Capacity 309 Pricing $579.00 Stage 2+ Product Number SH743H-9 Torque Capacity 345 Pricing $599.00 Stage 3 Product Number SH743-9 Torque Capacity 367 Pricing $579.00 Stage 3+ Product Number SH743F-9 Torque Capacity 425 Pricing $679.00 Stage 4 Product Number SH744-9 Torque Capacity 367 Pricing $579.00 Stage 5 Product Number SH745-9 Torque Capacity 513 Pricing $899.00 None Not Available Pricing Flywheels Product Number Pricing Choose Flywheel Aluminum Product Number SH74A Pricing $389.00 None Not Available Pricing Specialty Products Billet Flywheel Replacement Friction Plate Kit with Fasteners $79.00 Diamond ground, includes self-locking fasteners Questions? Give us a call. 1-800-828-4379