The SPEC Super Twin is a full-size twin-disc clutch system engineered for high-torque, high-rpm applications. The SS-Trim trim runs sprung semi-metallic friction material across two discs for a large jump in holding capacity over a single-disc clutch while staying streetable, and the kit ships complete with pressure plate, discs, flywheel, and the hardware needed for installation. Fits Nissan Skyline R31 (1985-1989), R32 (1989-1994) and R33 (1993-1998). Chassis/engine-keyed import application; confirm transmission and input shaft spline before ordering.
| System | Super Twin |
| Trim | SS-Trim |
| Configuration | Twin disc |
| Friction Material | Sprung semi-metallic |
| Flywheel | Steel |
| Part Number | SN23SST |
Shipping: In-stock orders placed before 3 PM EST ship the same day, and everything else ships within 24 hours. Standard, expedited, and overnight options are available at checkout. Backordered items ship as soon as we get them back in stock. Contact us for lead times. See the full Shipping Policy.
Returns: 30-day returns on new, unused items in original packaging. See the full Refund Policy.
