SKU: actSB10-XTSS ACT Xtreme Duty Street Clutch Kit for 04-21 Subaru STI, 07-09 Legacy GT Spec B

ACT Xtreme Duty Street Clutch Kit for 04-21 Subaru STI, 07-09 Legacy GT Spec B

The SB10-XTSS kit is designed for the most demanding drivers, featuring the advanced ACT Xtreme pressure plate for exceptional performance. ACT's Xtreme pressure plates utilize an exclusive diaphragm design to deliver increased clamp load, reduced deflection, and extended clutch life. Every diaphragm undergoes a rigorous four-stage heat-treating process to ensure unmatched durability. Precision cover stampings provide added rigidity and consistent performance, making it a reliable choice for high-performance applications.

Complementing the pressure plate, ACT's Performance street discs are crafted from premium organic materials with higher copper content for enhanced heat transfer. The steel-backed lining ensures superior burst strength and durability, while the reduced marcel design promotes quicker shift action. These discs operate quietly while offering increased strength and reliability, making them the most popular choice among drivers seeking top-tier performance.

Additionally, the kit includes the Monoloc system, a one-piece upgrade that replaces the standard two-piece wedge collar and wire ring found in pull-type clutches. Constructed from hardened chrome-moly steel, Monoloc provides uniform loading on the bearing and pressure plate, ensuring proper alignment under all conditions. Engineered for optimal spring tension, this system guarantees years of reliable service, regardless of vehicle modifications or driving style.

With its precision engineering and premium materials, the SB10-XTSS kit offers unbeatable value and performance for drivers who demand the best.

Important Note About Vehicle Fitment

Our vehicle fitment selection tool is currently in development, and we’re working hard to ensure the accuracy of our data. While most models and trims should be correct, there may be some instances where fitment information is incomplete or an alternative option is available.

If you’re unsure about the compatibility of a part with your vehicle, please don’t hesitate to reach out to us for assistance. Our team is here to help you find the perfect fit!