ACT HD Performance Street Sprung Clutch Kit | 2006-2025 Subaru WRX (SB11-HDSS)

ACT HD Performance Street Sprung Clutch Kit | 2006-2025 Subaru WRX (SB11-HDSS)

ACT's SB11-HDSS kit combines the brand's Heavy Duty pressure plate with its Performance Street sprung disc and a Streetlite flywheel. The diaphragm on the pressure plate is heat treated in four stages to raise clamp load and limit deflection, and the organic disc uses a high copper content and steel-backed lining to manage heat and resist bursting. Torque capacity is rated at 449 ft/lbs, 39% above stock.

Key features

• Heavy Duty pressure plate with ACT's diaphragm design
• Organic Performance Street sprung disc
• Pedal feel: light to moderate effort with a smooth, positive take-up; gear rattle from stock-like to mild
• Every unit is clamp-load tested and computer balanced
• Torque capacity: 449 ft/lbs (39% over OE)

What's included

• 1 pressure plate
• 1 clutch disc
• 1 alignment tool
• 1 release bearing
• 1 Streetlite flywheel

Before you order

This is a conversion kit that replaces the original 230mm clutch and must be used with the ACT flywheel supplied in the box. Starting with VIN J806877 in mid-2018 model year production, Subaru moved to 240mm clutch components, and ACT clutch kits and flywheels are not compatible with those revised OEM parts, so check your VIN carefully. Listed applications include 2006 Baja Turbo, 2006-2008 Forester XT models, 2006-2011 Impreza WRX trims, 2005-2012 Legacy GT and 2.5GT trims, 2005-2009 Outback XT trims, and 2013-2024 WRX Base, Premium, Limited, Sport, Sport-tech, Sport-tech RS and TR trims. Send us your year, model and current setup and we will confirm fitment before you order.

Find more drivetrain car parts.

See also: ACT Heavy Duty vs Xtreme · clutch break-in · organic vs ceramic clutch discs · clutch master cylinder symptoms · clutch slipping: symptoms and causes · stage 1 vs stage 2 clutch · signs of a bad clutch · Subaru WRX and STI parts.

Shipping and returns

Shipping is a flat $80.00 per order to US addresses, and returns are free within 15 days of delivery. Questions before you order? Ask a parts specialist.