ACT HD/Race Rigid 4 Pad Clutch Kit 2016-2018 Mazda MX-5 Miata ND

ZM10-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.

Feel
Noticeably improved engine response and acceleration, OE to mild gear rattle

Life
Heat-treated forging for strength and toughness, induction-hardened ring gears for maximum life

Quality
Assures correct external balance for manual shift engine using OE front counterweight

Recommended Use
Recommended for street and race use

ACT Difference
Forged, CNC machined and dynamically computer balanced for smooth high RPM reliability