ACT Extreme Race Sprung 4 Pad Clutch Kit 2004-2021 STI

DESCRIPTION

The ACT Extreme Race Sprung 4 Pad Clutch Kit for 2004-2021 STI features an Xtreme pressure plate and 4-pad spring-centered race disc for aggressive, high-performance driving. The diaphragm spring is four-stage heat treated for consistent pedal feel, while the sprung disc reduces torsional vibrations and resists failure under extreme conditions. Wraparound spring retainers add strength and durability, and the Monoloc one-piece collar ensures proper alignment and improves release mechanism life. Engagement is firmer for faster shifts, making this kit ideal for high horsepower street or race use.

WHY?

This clutch kit is built for drivers seeking reliable, high-torque performance. The Xtreme pressure plate increases clamp load, the sprung disc smooths driveline vibration, and the Monoloc collar ensures consistent release alignment. Together, these features provide predictable engagement, confidence during hard shifts, and durable high-RPM performance for street or race applications.

FEATURES:

• Feel moderate to heavy pedal effort with aggressive engagement and confidence under hard shifts

• Life ceramic friction materials and diaphragm design extend clutch and release mechanism life

• Quality spring-centered disc with wraparound retainers, precision-balanced for high heat tolerance

• Use recommended for high horsepower street or race applications

• Included Monoloc one-piece collar for improved alignment and durability

• ACT difference 100% clamp load tested and dynamically balanced for smooth high-RPM performance

COMPATIBILITY

2004-2021 STI

SPECIFICATIONS