SPEC Stage 4 Clutch Kit

2002–2005 Subaru WRX 2.0L Turbo

Part #: SU004

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. Built specifically for 2002 to 2005 models equipped with the 2.0L turbocharged engine, this clutch kit is ideal for high-performance applications such as drag racing, road racing, rally, and spirited street driving. Whether you're pushing your car on the track or tackling tough off-road conditions, the Stage 4 kit provides the strength and engagement you need to handle increased power and demanding driving scenarios.

Constructed with premium materials and engineered for maximum grip, the SPEC Stage 4 Clutch Kit ensures reliable power transfer and consistent performance. Its robust design helps support increased horsepower and torque, making it a popular choice among Subaru tuners and performance enthusiasts seeking a clutch that can withstand aggressive driving while maintaining streetability.

Key Features

The SPEC Stage 4 Clutch Kit incorporates several advanced features to enhance your vehicle's performance and reliability:

• Solid hub design with an 8-rivet construction for superior strength and durability under high-stress conditions.
• Heat-treated components to resist warping and ensure long-lasting performance during intense driving sessions.
• Available in 3, 4, or 6 puck configurations, allowing you to choose the engagement characteristics best suited to your driving style and application.
• The 3 puck option offers a lightweight, aggressive feel for street use, while the 6 puck provides the smoothest engagement for high-power racing scenarios.
• The 4 puck configuration strikes a balance between street comfort and racing performance, making it a versatile choice for daily drivers who also enjoy spirited driving.
• Designed to handle increased power levels, supporting modifications such as turbo upgrades, engine tuning, and drivetrain enhancements.
• Precision manufacturing ensures proper fitment and reliable operation, reducing the risk of chatter or slipping.
• Compatible with factory flywheels and OEM components for straightforward installation.

Construction & Design

The SPEC Stage 4 Clutch Kit features a high-quality, multi-layered clutch disc with a specialized friction material optimized for high heat and aggressive engagement. The pressure plate is engineered for maximum clamping force, ensuring consistent power transfer even under demanding conditions. The solid hub design eliminates flex and provides a direct, responsive feel, making it suitable for racing and high-performance street applications.

The heat-treated assembly and durable rivets contribute to the clutch's longevity, allowing it to withstand the rigors of aggressive driving without premature wear. The kit's components are precisely machined and assembled to ensure proper alignment and smooth operation, reducing pedal effort and enhancing driver confidence during gear changes.

Installation & Fitment

The SPEC Stage 4 Clutch Kit is a bolt-on upgrade that directly replaces the factory clutch components on your Subaru WRX. No cutting, drilling, or complex modifications are required for installation. It is recommended to have a professional mechanic perform the installation to ensure proper setup and alignment. The kit includes all necessary components for a complete upgrade, making it a straightforward process for experienced enthusiasts and technicians.

• Designed specifically for 2002–2005 Subaru WRX models with the 2.0L turbocharged engine.
• Compatible with factory flywheels and OEM hardware.
• Ideal for high-performance driving, racing, and applications requiring increased torque capacity.

What's Included

• High-performance clutch disc (3, 4, or 6 puck options)
• Heavy-duty pressure plate
• Release bearing
• Alignment tool
• Installation instructions

Ideal For

• Subaru WRX owners seeking increased performance and durability
• High-horsepower builds and turbo upgrades
• Racing, rally, and spirited street driving
• Drivers requiring a reliable clutch capable of handling aggressive driving styles