ACT 1991 Mazda Miata HD/Race Sprung 4 Pad Clutch Kit

The ZM1-HDG4 kit features ACT's most popular Heavy Duty pressure plate. ACT Heavy Duty pressure plates use an exclusive diaphragm design to increase clamp load, reduce deflection, and maximize clutch life. All diaphragms undergo a four-stage heat-treating process for unparalleled performance. ACT pressure plates feature precision cover stampings for rigidity and consistency. ACT's 4-pad spring-centered race disc features a spring center to properly damp torsional vibrations for quieter operation and resist failure even under harsh conditions. ACT spring retainers utilize wraparound spring windows and thicker retainer stampings to provide spring support, reduce stress concentrations, and increase strength and reliability. With the 4-pad spring-centered race disc, engagement is harsher, but shifting is faster. ACT's 4-pad spring-centered race disc is well-suited for smaller disc sizes in smaller engines.
Warranty
Installation Instructions


This Part Fits:

Year	Make	Model	Submodel
1990-1993	Mazda	Miata	Base
1993	Mazda	Miata	LE
1991	Mazda	Miata	SE