ACT 4 Pad Rigid Race Disc

2001–2006 BMW M3 3.2L

Part #: 4240029

Overview

The ACT 4 Pad Rigid Race Disc is a high-performance clutch component designed specifically for the BMW M3 models from 2001 to 2006 equipped with a 3.2L engine. Engineered for racing applications, this disc delivers aggressive engagement and rapid shifts, making it an ideal choice for enthusiasts seeking maximum performance on the track or during spirited driving. Its robust construction and premium materials ensure that your vehicle can handle increased power levels and demanding driving conditions, providing reliable durability and consistent performance.

If you're looking to enhance your BMW M3's clutch response, reduce shift times, and support higher torque loads, this rigid race disc offers a significant upgrade over stock components. Keep in mind that due to its aggressive design, it may produce increased gear rattle and noise, which is typical for race-oriented clutch parts. Designed for dedicated track use or high-performance driving, this disc helps you achieve quicker, more precise gear changes and improved overall drivetrain responsiveness.

Key Features

The ACT 4 Pad Rigid Race Disc incorporates several advanced features to optimize performance and durability:

• High-Performance Ceramic Friction Material: Crafted from premium ceramic compounds, this friction material provides excellent heat tolerance and moderate wear rates, ensuring consistent engagement even under extreme conditions.
• Rigid Design: The rigid construction enhances torque capacity and engagement response, making it suitable for high-horsepower applications. However, this rigidity may increase spline wear over time.
• Lightweight Chromoly Hub: The heat-treated chromoly hub offers exceptional strength and durability while minimizing rotational mass, contributing to quicker throttle response and reduced drivetrain inertia.
• High Burst Strength: Engineered to withstand high torque loads, this disc holds 28% more torque than typical organic materials, providing added safety margin during aggressive driving.
• Moderate Wear Rates: The ceramic friction materials balance durability with performance, ensuring reliable operation during intense racing sessions.
• Enhanced Heat Dissipation: The materials and design help manage high operating temperatures, reducing the risk of fade during extended high-performance use.
• Optimized for Race Use: This disc is recommended exclusively for race applications, where maximum engagement and torque capacity are prioritized over comfort and noise levels.

Construction & Design

The ACT 4 Pad Rigid Race Disc features a lightweight, rigid design built with high-quality ceramic friction materials. The disc's core is constructed from a heat-treated chromoly hub, which provides exceptional strength and resistance to deformation under high torque loads. The ceramic friction lining is carefully engineered to offer high heat tolerance and consistent engagement, even during prolonged racing conditions. The overall assembly is designed to withstand the rigors of competitive motorsport, with a focus on durability, strength, and maximum torque capacity.

Installation & Fitment

The ACT 4 Pad Rigid Race Disc is a bolt-on upgrade for the specified BMW M3 models from 2001 to 2006 with a 3.2L engine. Installation requires standard mechanical skills and tools; however, due to its race-oriented design, it is recommended to have a professional mechanic perform the installation to ensure proper setup and safety. No modifications to the transmission or flywheel are typically necessary, but it is advisable to inspect and replace the clutch assembly as needed during installation. This disc is designed to fit directly onto the stock clutch assembly, providing a straightforward upgrade path for racing applications.

• Bolt-on installation for BMW M3 (01-06) 3.2L models
• No cutting, drilling, or special tuning required

What's Included

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

Ideal For

• Track racing and high-performance driving
• Enthusiasts seeking maximum torque capacity and rapid shift response
• Drivers who prioritize performance over comfort and noise