ACT Heavy Duty Sprung 4-Puck Disc Clutch Kit 2004-2021 STI

DESCRIPTION

The ACT Heavy Duty Sprung 4-Puck Disc Clutch Kit for the 2004-2021 STI is designed for high-horsepower street and race applications that need strong holding power with responsive engagement. It features ACT’s Heavy Duty pressure plate with an exclusive diaphragm design to increase clamp load, reduce deflection, and extend clutch life. The 4-puck spring-centered race disc dampens torsional vibrations while providing faster, more aggressive engagement.

Precision-engineered retainers and the patented Monoloc release mechanism ensure consistent alignment and durability under repeated hard shifts. The kit delivers reliable performance in a compact, lightweight design suitable for smaller engines or high-torque setups.

WHY?

This clutch is ideal for STI owners seeking a compact yet powerful solution for aggressive street or race use. The spring-centered 4-puck disc offers quicker shifts and confident engagement, while the heavy-duty pressure plate and Monoloc system improve reliability and extend the life of the release mechanism.

FEATURES:

• Light to moderate pedal effort with aggressive engagement

• 4-puck spring-centered race disc for fast, controlled shifts

• Heavy Duty diaphragm pressure plate for high clamp load and durability

• Includes ACT patented Monoloc release mechanism

COMPATIBILITY

2004-2021 STI

SPECIFICATIONS