ACT ZM2-HDSS Heavy Duty Performance Street Sprung Clutch Kit for Mazda Miata

ZM2-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. HD/Perf Street Sprung Light to moderate pedal effort, smooth positive engagement, OE to mild gear rattle; Longer friction life, extended by ACT's exclusive diaphragm design; Carefully engineered, precisely assembled, accurately balanced, with premium organic friction materials for heat tolerance and reduced fade; Recommended for street and race use; 100% clamp load tested and dynamically computer balanced for smooth high RPM reliability

• "Excellence in Performance", backed by the best one-year warranty in the industry!

The ACT ZM2-HDSS Heavy Duty Performance Street Sprung Clutch Kit combines ACT’s popular Heavy Duty pressure plate with a Performance Street sprung disc for dependable street and race-oriented performance. Designed for drivers seeking stronger clutch clamping force without sacrificing manageable pedal effort, this kit supports smooth, positive engagement and reliable power transfer for mild to moderately modified applications.

The ACT Heavy Duty pressure plate uses an exclusive diaphragm design to increase clamp load, reduce deflection, and help extend clutch life. Each diaphragm undergoes a four-stage heat-treating process, while precision cover stampings improve rigidity and consistency. The Performance Street disc uses premium organic friction material with high copper content for improved heat transfer, reduced fade, and longer friction life. Steel-backed lining enhances burst strength and durability, while reduced marcel promotes faster shift action. The sprung hub helps maintain smooth engagement with OE to mild gear rattle characteristics.

Every ACT ZM2-HDSS kit is carefully engineered, precisely assembled, accurately balanced, and 100% clamp-load tested. Dynamic computer balancing supports smooth, reliable operation at high RPM. The kit is recommended for both street and race use and is backed by ACT’s one-year warranty. This clutch kit fits select 1994–1999 Mazda Miata applications; verify vehicle year and application details before installation.

What's Included: Heavy Duty pressure plate, Performance Street sprung clutch disc, and associated clutch kit components as supplied by ACT.

Features:

• Heavy Duty Pressure Plate: Exclusive diaphragm design increases clamp load, reduces deflection, and supports extended clutch life.
• Heat-Treated Diaphragm: Four-stage heat treatment delivers consistent performance and long-term durability.
• Performance Street Disc: Premium organic friction material with high copper content improves heat transfer and helps reduce fade.
• Balanced Street and Race Performance: Reduced marcel provides faster shift action, while the sprung hub supports smooth engagement and manageable pedal effort.

Fitments:
1990 Mazda Miata Base
1991 Mazda Miata Base
1991 Mazda Miata SE
1992 Mazda Miata Base
1993 Mazda Miata Base
1993 Mazda Miata LE
1994 Mazda Miata Base
1994 Mazda Miata M Edition
1995 Mazda Miata Base
1995 Mazda Miata M Edition
1996 Mazda Miata Base
1996 Mazda Miata M Edition
1997 Mazda Miata Base
1997 Mazda Miata M Edition
1997 Mazda Miata STO
1999 Mazda Miata 10th Anniversary
1999 Mazda Miata Base
2000 Mazda Miata Base
2000 Mazda Miata LS
2000 Mazda Miata SE
2001 Mazda Miata Base
2001 Mazda Miata LS
2001 Mazda Miata SE
2002 Mazda Miata Base
2002 Mazda Miata LS
2002 Mazda Miata SE
2003 Mazda Miata Base
2003 Mazda Miata LS
2003 Mazda Miata SE
2003 Mazda Miata Shinsen
2004 Mazda Miata Base
2004 Mazda Miata LS
2004 Mazda Miata Mazdaspeed
2005 Mazda Miata Base
2005 Mazda Miata LS
2005 Mazda Miata Mazdaspeed

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1