This SPEC Stage 3+ clutch disc is a disc-only replacement specified for 2005–2008 Porsche Boxster 6-speed models and intended for use with a single-mass billet flywheel. The Stage 3+ disc provides higher capacity friction characteristics suitable for aggressive street or track use where an upgraded clutch disc is required, and it fits applications that use the specified single-mass billet flywheel configuration.
Spec 05-08 Porsche Boxster 6 Speed Stage 3+ Disc (DISC ONLY) for Single Mass Billet Flywheel