ACT Heavy Duty Performance Street Sprung Clutch Kit – 2006 Subaru Impreza (5-Speed)

Upgrade your 5-speed Impreza with a proven performance clutch designed to handle spirited street driving and occasional race use. The ACT Heavy Duty Performance Street Sprung Clutch Kit (SB11-HDSS) brings together ACT’s most trusted pressure plate and their best-selling organic street disc to deliver a powerful balance of torque capacity, reliability, and smooth engagement.

Key Features & Benefits

• Solid Torque Upgrade: Rated to handle up to 449 ft-lbs of torque—an increase of 39% over OEM specs.
• Organic Street Disc: Made from premium materials with high copper content for improved heat transfer. Steel-backed lining enhances burst strength and clutch longevity.
• ACT Heavy Duty Pressure Plate: Features a proprietary diaphragm design that improves clamp load while reducing deflection, maximizing service life and engagement consistency.
• Faster Shifts: Reduced marcel in the disc promotes quicker engagement and better responsiveness while maintaining quiet, street-friendly operation.
• Streetlite Flywheel Compatibility: Designed to pair with ACT’s Streetlite flywheel for optimal performance in a lightweight, street-tuned setup.

Technical Specifications

What to Expect

• Feel: Light to moderate pedal effort with smooth, confident engagement. OE to mild gear rattle may be present under load.
• Longevity: Extended clutch life thanks to ACT’s four-stage heat-treated diaphragm and premium disc materials.
• Build Quality: Carefully engineered and precisely balanced for long-term reliability and high-RPM stability.

The ACT Difference

Each ACT clutch is 100% clamp load tested and dynamically computer balanced to ensure consistent, high-performance operation. Trusted by performance enthusiasts and racers alike, this kit delivers the performance you need with the drivability you want.