ACT 4 Pad Rigid Race Disc

2017–2020 Subaru Impreza / 2013–2016 Scion FR-S / 2016–2017 Subaru Crosstrek / 1990–2020 Toyota 86

Part #: 4224018

Overview

The ACT 4 Pad Rigid Race Disc is a high-performance clutch component designed for racing enthusiasts seeking maximum engagement and quick shifts. Crafted with premium ceramic friction materials, this race disc delivers aggressive engagement characteristics, making it ideal for track days, spirited driving, and competitive racing. Its lightweight, rigid design ensures minimal rotational mass, allowing for faster throttle response and improved power transfer from your engine to the wheels.

Built for drivers who demand durability and high heat tolerance, this race disc is engineered to withstand the intense conditions of racing environments. The chromoly hub, heat-treated for strength and durability, provides high burst strength and can hold up to 28% more torque than typical organic clutch discs. However, due to its aggressive design and high-performance materials, it is recommended for race use only, not for daily driving or street use.

Key Features

The ACT 4 Pad Rigid Race Disc offers a combination of advanced materials and precision engineering to optimize your vehicle's clutch performance. Key features include:

• Premium ceramic friction materials that provide high heat tolerance and moderate wear rates, ensuring consistent performance during intense racing sessions.
• Rigid design with a lightweight construction that reduces rotational inertia, resulting in quicker throttle response and faster gear shifts.
• Chromoly hub that is heat-treated for enhanced strength, durability, and high burst strength, capable of handling increased torque loads.
• Designed specifically for race applications, offering aggressive engagement and improved power transfer.
• High burst strength and increased torque capacity—28% more than standard organic discs—making it suitable for high-horsepower builds.
• Rigid construction may increase spline wear over time, which is typical for race-oriented components subjected to extreme conditions.

Construction & Design

The ACT 4 Pad Rigid Race Disc features a robust construction that combines a high-strength chromoly hub with a rigid, lightweight ceramic friction surface. The ceramic friction materials are selected for their ability to withstand high temperatures generated during aggressive driving and racing, ensuring consistent engagement and minimal fade. The hub is heat-treated to maximize durability and burst strength, providing a reliable foundation for high-torque applications. The overall design emphasizes minimal rotational mass, enabling quicker engine response and more precise gear changes, critical for competitive racing scenarios.

Installation & Fitment

The ACT 4 Pad Rigid Race Disc is a bolt-on replacement compatible with specific Subaru, Toyota, and Scion models listed above. Installation requires standard clutch removal procedures; no modifications or special tuning are typically necessary. Due to its race-oriented design, it is recommended that installation be performed by a professional technician familiar with high-performance clutch systems. This disc is intended solely for race use, so it is not suitable for daily driving or street applications.

• Direct bolt-on replacement for factory clutch discs on compatible models
• No cutting, drilling, or additional modifications required
• Proper break-in and bedding procedures are recommended for optimal performance

What's Included

• ACT 4 Pad Rigid Race Disc
• Installation hardware and instructions (if applicable)

Ideal For

• Race car enthusiasts seeking maximum engagement and quick shifts
• High-performance builds requiring increased torque capacity
• Drivers participating in track days or competitive racing