Exedy Hyper Single Clutch Kit. HH01SD All Hyper Clutches come with a steel flywheel and a 6-puck disc with cerametallic facing, and a spring centre damper. The disc is generally smaller & thinner than the OEM disc making for lower inertia & therefore quicker, easier shifting. The higher clamp load & cerametallic friction facings give approximately twice the holding torque of the OEM clutch & generally higher than other single plate clutches.