SPEC Stage 4 Clutch Kit

2006–2009 Subaru WRX 2.0L Turbo

Part #: SU204

Overview

The SPEC Stage 4 Clutch Kit is designed to deliver exceptional performance and durability for Subaru WRX enthusiasts who demand more from their vehicle. Whether you're into drag racing, road racing, rallying, or towing, this clutch kit provides the strength and responsiveness needed to handle increased power and aggressive driving styles. Built with high-quality materials and engineered for precision, the Stage 4 kit ensures reliable engagement and long-lasting performance under demanding conditions.

If you're looking to upgrade your stock clutch for improved holding capacity and a more aggressive pedal feel, the SPEC Stage 4 is an excellent choice. It offers a balance between streetability and high-performance capabilities, making it suitable for spirited daily driving as well as competitive motorsports. With this clutch, you'll experience better torque transfer, quicker throttle response, and a more confident driving experience.

Key Features

The SPEC Stage 4 Clutch Kit incorporates advanced design and construction features to maximize performance and longevity. Key features include:

• Solid hub construction with an 8-rivet design, providing increased strength and resistance to shearing under high torque loads.
• Heat-treated components that enhance durability and reduce the risk of warping or failure during intense driving sessions.
• Available in 3, 4, or 6 puck configurations, allowing you to choose the optimal setup based on your driving style and performance goals.
• The 3 puck option offers the lightest engagement and is ideal for street use, providing quick throttle response with minimal pedal effort.
• The 4 puck configuration strikes a balance between street comfort and racing performance, making it suitable for spirited driving and occasional track use.
• The 6 puck setup delivers the most aggressive engagement, perfect for drag racing, rally, or other high-power applications where maximum grip is essential.
• Designed to withstand high horsepower and torque increases, supporting your vehicle's performance upgrades.
• Precision engineering ensures smooth engagement and consistent performance, reducing chatter and slip during operation.

Construction & Design

The SPEC Stage 4 Clutch Kit features a high-performance pressure plate and a multi-puck disc designed for maximum grip and durability. The pressure plate is engineered with a robust diaphragm spring and reinforced components to handle increased clamping force without sacrificing pedal feel. The clutch disc utilizes high-friction material and a solid hub design to improve power transfer and reduce slippage.

The assembly is meticulously heat-treated to withstand the rigors of aggressive driving and high-stress conditions. The use of high-quality materials and precision manufacturing ensures a perfect fit and reliable operation, whether you're on the street or the track. The kit is designed for easy installation with factory mounting points, requiring no modifications or special tools.

Installation & Fitment

This clutch kit is a bolt-on upgrade for the 2006–2009 Subaru WRX with a 2.0L turbocharged engine. Installation involves replacing the factory clutch components with the Stage 4 assembly, and it is recommended to have a professional mechanic perform the installation to ensure proper setup and alignment. No cutting, drilling, or tuning is required, and the kit is designed to fit perfectly with your vehicle's existing transmission and flywheel.

• Complete clutch kit with pressure plate, multi-puck disc, and release bearing
• All necessary hardware and instructions included for straightforward installation

Ideal For

• Performance enthusiasts seeking increased power handling capacity
• Drag racers and rally drivers demanding maximum grip and durability
• Owners upgrading their Subaru WRX for spirited driving and motorsport applications
• Drivers looking for a reliable, high-performance clutch that balances streetability with race-ready features