OS Giken TR Series twin plate clutch for Toyota Supra JZA80 with the 2JZ-GTE engine and 6-speed manual (26-spline hub, 6-C) is a multi-plate clutch assembly specified for that chassis and drivetrain. It replaces the single-plate setup with a twin-plate configuration to handle higher load demands where a matched twin-plate solution is required for fitment and torque capacity in this application.
OS Giken Toyota Supra JZA80 2JZ-GTE 6MT w/ 26 Spline Hub (6-C) TR Series Twin Plate Clutch