Action Clutch

Fits 2004–2021 Subaru WRX STI 2.5L Turbo

Part #: ACR-1804-884006P

Overview

The Action Clutch Stage 3 (1MS) Clutch Kit is engineered to deliver exceptional durability and high-performance engagement for Subaru WRX STI owners seeking reliable, race-inspired clutch solutions. Designed specifically for the 2.5L turbocharged engine, this kit is ideal for enthusiasts who demand a robust clutch capable of handling aggressive driving, spirited street use, and light track days. Its heavy-duty components ensure consistent power transfer and long-lasting performance, making it a perfect upgrade for those looking to enhance their vehicle’s responsiveness and durability under demanding conditions. This clutch kit combines a reinforced drive strap design with a high-performance single diaphragm pressure plate, providing a firm pedal feel and quick engagement. The included Sprung MIBA Ceramic disc, available in 4 or 6 puck configurations, offers improved response and a more direct connection between the engine and transmission. While some clutch chatter may occur during initial break-in, this is normal and will diminish with proper use, ultimately supporting a more aggressive driving style and increased power handling capacity.

Key Features

This clutch kit features high-quality materials and a carefully engineered design to optimize performance and longevity. Key features include:

• Heavy-duty single diaphragm pressure plate for increased clamping force
• Reinforced drive straps for enhanced durability under high torque loads
• Sprung MIBA Ceramic disc for quick engagement and reliable power transfer
• Available in 4 or 6 puck configurations to suit different driving preferences
• Designed for easy installation with OEM-like fitment
• Supports aggressive driving and light track use
• Helps improve throttle response and pedal feel

Construction & Design

The clutch components are crafted from high-grade ceramics and reinforced steel, ensuring resistance to heat and wear during demanding driving conditions. The reinforced drive straps and heavy-duty pressure plate are engineered for maximum clamping force and longevity, providing a reliable upgrade for high-performance applications.

Driving Feel & Feedback

This Stage 3 clutch kit offers a firm pedal feel with quicker engagement, translating to more precise control during spirited driving. The ceramic disc enhances response, making throttle inputs feel more immediate and confident, while the reinforced components support consistent engagement even under high stress.

Installation & Fitment

Designed specifically for the 2004–2021 Subaru WRX STI with the 2.5L turbocharged engine, this clutch kit is a direct bolt-on replacement. Proper break-in procedures are recommended to ensure optimal performance and longevity.

What’s Included

The package includes all necessary components for a complete clutch replacement, including the pressure plate, disc, and hardware required for installation.

Ideal For

Perfect for enthusiasts looking to upgrade their stock clutch for improved response, durability, and handling under aggressive driving conditions. Suitable for street performance and light track use.