ACT Extreme Race Sprung 4 Pad Clutch Kit 06-26 WRX / 05-12 Legacy GT / 05-09 Outback XT / 06-08 Forester XT / 06 Baja | 681 ft/lbs Torque Capacity | High-Performance Clutch Kit
Overview
The ACT Extreme Race Sprung 4 Pad Clutch Kit is engineered for Subaru enthusiasts who demand aggressive engagement and high torque capacity for street or race applications. Designed to handle up to 681 ft/lbs of torque, this clutch kit is ideal for high horsepower builds on platforms including the 2006-2026 WRX, 2005-2012 Legacy GT, 2005-2009 Outback XT, 2006-2008 Forester XT, and 2006 Baja. It delivers a moderate to heavy pedal effort with a more aggressive engagement profile, making it perfect for drivers seeking quicker shifts and enhanced drivetrain response.
ACT’s engineering approach centers on durability and precision. The kit features an Xtreme pressure plate with a unique diaphragm design that increases clamp load, reduces deflection, and extends clutch life through a rigorous four-stage heat treatment process. The 4-pad spring-centered race disc incorporates spring-center construction to dampen torsional vibrations, reducing noise and improving reliability under harsh conditions. This combination ensures consistent performance and longevity even in demanding driving environments.
For Subaru owners, this clutch kit offers a significant upgrade over OEM components by providing 121% more torque capacity, making it well-suited for modified engines and aggressive driving styles. The precise balance and high heat tolerance of the ceramic friction material ensure smooth operation at high RPMs, while the compact 9.4-inch disc diameter fits well within Subaru’s smaller engine bays. Whether on the street or track, this clutch kit enhances engagement, durability, and overall drivetrain performance.
Features & Specifications
This ACT Extreme Race Sprung 4 Pad Clutch Kit is engineered for Subaru WRX, Legacy GT, Outback XT, Forester XT, and Baja models. It features a 9.4-inch ceramic friction disc and an Xtreme pressure plate designed to deliver 681 ft/lbs of torque capacity, providing robust performance for high horsepower applications.
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Brand: ACT
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Product: Extreme Race Sprung 4 Pad Clutch Kit
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Part Number: SB12-XTG4
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Fitment: 06-26 WRX / 05-12 Legacy GT / 05-09 Outback XT / 06-08 Forester XT / 06 Baja
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Material: Ceramic friction disc, steel pressure plate
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Finish: Natural metal finish
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Construction: Precision stamped pressure plate, spring-centered 4-pad disc
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Origin: Not specified
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Torque Capacity: 681 ft/lbs
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Torque Capacity Over OE: 121%
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Clutch Disc Diameter: 9.4 inches (240 mm)
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Input Shaft Diameter: 1 inch
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Pressure Plate Type: Xtreme diaphragm design
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Flywheel Type: Prolite
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Pedal Effort: Moderate to heavy
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Engagement: Aggressive, faster shifting
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Warranty: 12 months
Key Benefits
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Performance: Handles high horsepower builds with 681 ft/lbs torque capacity, 121% stronger than OEM
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Durability: Four-stage heat-treated diaphragm and robust spring-centered disc resist failure under extreme conditions
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Engagement: Aggressive clutch engagement for quicker, more precise shifts ideal for spirited driving
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Fitment: Designed specifically for multiple Subaru platforms ensuring reliable, direct fit installation
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Quality: Precision balanced and clamp load tested for smooth operation at high RPMs
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Noise Reduction: Spring-centered disc construction dampens torsional vibrations for quieter operation
What's Included
- 1× ACT Extreme Race Sprung 4 Pad Clutch Kit
- 1× Xtreme pressure plate
- 1× Spring-centered 4-pad ceramic friction clutch disc
- 1× Prolite flywheel
- Installation instructions
Installation & Compatibility
Installation of the ACT Extreme Race Sprung 4 Pad Clutch Kit is moderately challenging and generally recommended for those with mechanical experience or professional installation. Special tools such as a clutch alignment tool and torque wrench are required to ensure proper fitment and function. This kit is designed for specific Subaru models listed in the fitment and requires no major modifications, but clutch pedal effort will be heavier and engagement more aggressive compared to stock. Tuning is not required but recommended to optimize drivetrain performance and prevent drivetrain shock.
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Professional Installation: Recommended
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Modifications Required: None
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Verify Compatibility: Confirm fitment for your specific year and trim level
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