The Action Clutch Stage 4 (1MD) kit for 2001-2006 BMW M3 3.2L (S54) uses an unsprung MIBA ceramic disc, heavy-duty diaphragm pressure plate, and reinforced drive straps to provide race-oriented holding capacity. Suited for drag, road or drift racing and dedicated track vehicles, it sacrifices some street refinement for maximum control. The manufacturer warns that selecting the wrong kit for your power level can cause premature failure or drivetrain damage.
Action Clutch 01-06 BMW M3 3.2L (S54) RWD Stage 4 Clutch Kit (1MD)