ACT Xtreme Race Rigid 4 Pad Clutch Kit w/ Flywheel Subaru 2006-2024 WRX | SB11-XTR4

Take your Subaru WRX’s performance to the next level with the ACT Xtreme Race Rigid 4 Pad Clutch Kit with Flywheel, part number SB11-XTR4. Specifically engineered for racing and high-performance applications, this clutch kit is designed to deliver maximum torque capacity, ultra-quick engagement, and exceptional durability under extreme conditions. Combining an Xtreme pressure plate, rigid 4-puck disc, and lightweight flywheel, the SB11-XTR4 clutch kit is ideal for serious drivers who demand uncompromised performance on the track.

Key Features:

• Xtreme Pressure Plate for Unmatched Clamping Force: The ACT Xtreme pressure plate offers superior clamping power, ensuring a solid, dependable connection between the engine and transmission. This increased clamping force is crucial for high-torque applications, allowing the clutch to handle significantly higher horsepower and torque without slippage.
• Rigid 4-Pad Disc for Quick and Aggressive Engagement: The 4-puck rigid disc is specifically designed for racing and high-intensity applications, providing fast, direct engagement. This design maximizes power transfer, enabling quicker shifts and optimal performance on the track. The rigid, unsprung hub reduces rotational mass and delivers immediate power to the drivetrain, making it perfect for high-RPM launches and aggressive acceleration.
• Lightweight Flywheel for Faster Acceleration and Improved Throttle Response: The included lightweight flywheel reduces rotational mass, allowing for quicker revs and faster throttle response. This flywheel enhances engine responsiveness, providing a noticeable improvement in acceleration and shift smoothness, which is essential for competitive driving.
• High Torque Capacity for Modified and High-Performance Engines: Built to handle the torque demands of modified engines, the SB11-XTR4 clutch kit is ideal for heavily tuned Subaru WRX setups. This clutch kit is capable of withstanding the intense conditions of track use, time attack, and drag racing, ensuring durability and reliable power transfer under extreme loads.
• Race-Ready Durability and Heat Resistance: Constructed from high-grade, heat-resistant materials, the ACT Xtreme Race Rigid 4 Pad Clutch Kit is built to endure the high temperatures and stress typical of racing environments. This durability ensures consistent performance even under continuous high RPMs, heavy loads, and high temperatures.
• Direct Fit for Subaru WRX Models: This clutch kit is tailored for Subaru WRX models from 2006 to 2024, ensuring precise fitment for EJ and FA-series engines. The direct-fit design simplifies installation, allowing for a seamless upgrade to your WRX’s clutch system.

Technical Specifications:

• Torque Capacity: 681 ft/lbs Built for high-power applications 
• Disc Type: Rigid 4-puck for rapid, aggressive engagement
• Flywheel Included: Lightweight flywheel for enhanced throttle response and acceleration

The ACT Xtreme Race Rigid 4 Pad Clutch Kit with Flywheel, part number SB11-XTR4, is the ultimate upgrade for serious WRX drivers who require maximum performance on the track. With exceptional torque handling, ultra-fast engagement, and a lightweight flywheel for improved response, this clutch kit is designed to take your Subaru WRX’s race performance to the next level.

NOTE: Conversion Kit. Replaces original 230mm clutch. Must use ACT Flywheel (included in kit). Subaru has incorporated 240mm clutch components into production during mid-2018MY production starting with VIN J806877. ACT clutch kits and flywheels are not compatible with the revised OEM components. Pressure plate bolts included (M8-1.25 x 16mm).