ZM2-HDR4 kit features ACT's most popular Heavy Duty pressure plate. ACT Heavy Duty pressure plates use exclusive diaphragm design to increase clamp load, reduce deflection and maximize clutch life. All diaphragms endure a four-stage, heat-treating process for unparalleled performance. ACT pressure plates have precision cover stampings to provide rigidity and consistency. ACT's 4-pad rigid race discs are made with high quality, ceramic friction materials. The chrome-moly hub is heat-treated for strength and durability. The lightweight, rigid design allows for quicker shifts and smooth, trouble-free service. With the 4-pad rigid race disc, engagement is harsher, but shifting is faster. The 4-pad rigid race disc is well-suited for the smaller disc sizes in smaller engines.

This Part Fits:

Year	Make	Model	Submodel
1999	Mazda	Miata	10th Anniversary
1990-1997,1999-2005	Mazda	Miata	Base
1993	Mazda	Miata	LE
2000-2005	Mazda	Miata	LS
1994-1997	Mazda	Miata	M Edition
2004-2005	Mazda	Miata	Mazdaspeed
1991,2000-2003	Mazda	Miata	SE
2003	Mazda	Miata	Shinsen
1997	Mazda	Miata	STO