Action Clutch Stage 4 Clutch Kit

2004–2011 Mazda RX-8 1.3L (13B-MSP)

Part #: ACR-0999RX8

Overview

The Action Clutch Stage 4 Metallic Rigid Clutch Kit is designed specifically for Mazda RX-8 models from 2004 to 2011 equipped with the 1.3L (13B-MSP) engine. This high-performance clutch kit is ideal for enthusiasts seeking aggressive engagement, increased holding capacity, and reliable durability for spirited driving, track days, or heavy-duty applications. Whether you're pushing your rotary engine to its limits or upgrading for improved response, this clutch delivers the performance you need.

Built with a focus on strength and responsiveness, the Stage 4 clutch features a heavy-duty ceramic system that provides exceptional heat dissipation and outstanding holding capacity. You'll experience a more direct and aggressive pedal feel, making it easier to control power delivery during high-performance driving. Despite its aggressive nature, the clutch maintains a relatively light pedal feel, ensuring comfortable daily driving and track use alike.

Key Features

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

• Single Diaphragm Heavy-Duty Pressure Plate: Provides a robust clamping force to handle increased power levels and aggressive driving conditions.
• Reinforced Drive Straps: Enhance durability and ensure consistent engagement under high torque loads.
• Metallic Rigid Ceramic Disc: Offers superior heat resistance and friction characteristics, supporting a 170% increase in holding capacity compared to stock clutches.
• Lightweight Unsprung Hub: Ensures rapid engagement and minimal rotational mass, improving throttle response and reducing drivetrain shock.
• Optimized Pedal Feel: Despite its aggressive engagement, the clutch maintains a light pedal pressure for ease of use during daily driving.
• Enhanced Heat Dissipation: Designed to withstand high temperatures generated during aggressive driving or track use, reducing the risk of clutch fade.

Construction & Design

The Action Clutch Stage 4 kit features a meticulously engineered design focused on durability and performance. The clutch disc is constructed with a high-grade metallic ceramic material that resists heat and wear, ensuring long service life even under demanding conditions. The reinforced drive straps add strength and stability, preventing deformation or failure during high-torque applications.

The pressure plate is a single diaphragm design, providing a consistent and reliable clamping force. Its heavy-duty construction ensures that it can handle increased power levels without slipping or chatter. The lightweight, unsprung hub design contributes to rapid engagement and improved throttle response, making it an excellent choice for performance-oriented drivers.

Installation & Fitment

The Action Clutch Stage 4 Clutch Kit is a bolt-on upgrade designed for direct replacement of the stock clutch in your Mazda RX-8. No cutting, drilling, or complex modifications are required, making installation straightforward for experienced technicians or skilled enthusiasts. Proper alignment and torque specifications should be followed during installation to ensure optimal performance and longevity.

• Requires basic hand tools and standard automotive equipment
• Recommended to be installed by a professional or experienced DIYer
• Ensure the flywheel surface is clean and free of oil or debris before installation

What's Included

• High-performance metallic ceramic clutch disc
• Heavy-duty pressure plate with reinforced drive straps
• Release bearing and alignment tool
• All necessary hardware and mounting components
• Installation instructions

Ideal For

• Performance enthusiasts seeking aggressive engagement and increased torque capacity
• Track day drivers and racers pushing their Mazda RX-8 to higher power levels
• Daily drivers who want a durable, reliable clutch upgrade with a responsive feel