ACT SB10-XTSS Xtreme Street Clutch Kit for 04-21 Subaru WRX STI 2.5L H4 Turbo

Vehicle Fitment

• 2004-2021 Subaru WRX STI (All Trims, 2.5L H4 Turbocharged)
• 2007-2009 Subaru Legacy GT Spec B (2.5L H4 Turbocharged)

Features

• Increased torque capacity up to 598 ft-lbs, suitable for high-performance applications
• Exclusive diaphragm design enhances clamp load and reduces deflection
• Four-stage heat-treated diaphragm ensures durability and performance
• Precision cover stampings provide rigidity and consistency
• Performance street disc with premium organic materials for improved heat transfer
• Steel-backed lining offers greater burst strength and durability
• Reduced marcel for faster shift action and improved engagement
• Moderate to heavy pedal effort with smooth, positive engagement

Specifications

• Part Number: SB10-XTSS
• Disc Diameter: 9.4 inches (240mm)
• Spline Count: 24
• Torque Capacity: 598 ft-lbs
• Disc Material: Premium organic with high copper content
• Pressure Plate Type: Xtreme
• Recommended Use: Street and race applications
• Compatibility: Designed for 2.5L H4 Turbocharged engines

Included Components

• Performance Street Sprung Disc
• Xtreme Pressure Plate
• Release Bearing
• Pilot Bearing
• Alignment Tool

Product Description

The ACT SB10-XTSS Xtreme Street Clutch Kit is engineered for drivers seeking enhanced performance and reliability. Featuring an Xtreme pressure plate with an exclusive diaphragm design, this kit increases clamp load while reducing deflection, ensuring consistent performance under demanding conditions. The four-stage heat-treated diaphragm and precision cover stampings contribute to its exceptional durability.

Complementing the pressure plate is a performance street disc crafted from premium organic materials with a high copper content, facilitating superior heat transfer. The steel-backed lining enhances burst strength, while the reduced marcel design allows for quicker shift action. This combination delivers a moderate to heavy pedal effort with smooth, positive engagement, making it ideal for both street and race applications.