ZM4-HDSS kit features ACT's most popular Heavy Duty pressure plate and most popular street disc. 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 Performance Street discs feature premium organic materials with high copper content for better heat transfer and steel-backed lining for greater burst strength and durability. These discs have reduced marcel for faster shift action to complement ACT pressure plates, with increased strength and reliability.
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Installation Instructions


This Part Fits:

Year	Make	Model	Submodel
2015	Mazda	MX-5 Miata	25th Anniversary Edition
2013-2015	Mazda	MX-5 Miata	Club
2006-2015	Mazda	MX-5 Miata	Grand Touring
2011-2012	Mazda	MX-5 Miata	Special Edition
2006,2013	Mazda	MX-5 Miata	Sport
2007-2012	Mazda	MX-5 Miata	Touring