5-speed f35 (1” 14 spline)
6-speed f40 (1” 23 spline)
This Heavy Duty Clutch kit features the 60% higher clamp load pressure plate and a full face ceramic disc with 'Marcel' spring between the facings for smooth engagement and chatter free use. The disc also features machined hub for zero change of interference with the diaphragm and disc and full encapsulated hub springs.
These kits have been in development and on the market for years now and have been installed in some of the higher powered NG93 2.0 Ecotec.
The Street Ceramic kit has been proven to hold strong in the 500whp range. An official "max torque" hasn't been confirmed because that limit hasn't been reached in real world applications as of yet.