ACT HD/Race Rigid 4 Pad Clutch Kit

2013–2016 Scion FR-S / 2013–2020 Subaru BRZ / 2017–2020 Toyota 86

SB8-HDR4

Overview:

The ACT HD/Race Rigid 4 Pad Clutch Kit is engineered specifically for the Scion FR-S (2013–2016), Subaru BRZ (2013–2020), and Toyota 86 (2017–2020). Designed for enthusiasts seeking a high-performance clutch solution, this kit combines durability with aggressive engagement to handle spirited driving and track conditions. Featuring ACT’s most popular Heavy Duty pressure plate and a rigid 4-pad race disc, it delivers increased clamp load and precise shifting response, making it ideal for drivers who demand reliability and performance under stress.

This clutch kit is perfect for those who want a race-ready upgrade that balances pedal effort with quick, positive engagement. While it offers a harsher engagement compared to street clutches, it ensures faster shifts and improved drivetrain feedback, enhancing the driving experience on both the street and the track.

Key Features:

Built with advanced materials and precision engineering, the ACT HD/Race Rigid 4 Pad Clutch Kit offers the following key features:

• Heavy Duty pressure plate with exclusive diaphragm design for increased clamp load and reduced deflection
• Four-stage heat-treated diaphragms for superior strength and longevity
• Precision cover stampings to enhance rigidity and consistency
• Rigid 4-pad race disc constructed with high-quality ceramic friction materials for excellent heat tolerance
• Chrome-moly heat-treated hub for enhanced strength and durability
• Lightweight, rigid disc design enabling quicker shifts and smooth operation
• Harsher engagement suited for aggressive driving and racing applications
• Extended friction life supported by ACT’s diaphragm technology
• 100% clamp load tested and dynamically computer balanced for reliable high RPM performance
• Backed by ACT’s industry-leading one-year warranty

Construction & Design:

The ACT HD/Race Rigid 4 Pad Clutch Kit is meticulously engineered with premium materials to withstand the rigors of high-performance driving. The pressure plate features an exclusive diaphragm spring design that increases clamp load while minimizing deflection, which helps maximize clutch life and maintain consistent pedal feel. Each diaphragm undergoes a rigorous four-stage heat treatment process, ensuring exceptional durability and performance under extreme conditions.

The clutch disc utilizes a rigid 4-pad layout with ceramic friction materials selected for their high heat tolerance and consistent engagement. The chrome-moly hub is heat-treated to provide superior strength and resistance to wear, supporting the demands of aggressive shifting and high torque loads. This combination results in a lightweight yet robust clutch assembly designed for quick, precise shifts and long-lasting service.

Performance & Sound

This clutch kit delivers a more aggressive engagement compared to standard street clutches, resulting in faster, more direct shifts. Drivers will notice increased gear rattle and a firmer pedal feel, characteristics typical of race-oriented clutches. The rigid disc design enhances drivetrain feedback, making it easier to modulate power delivery during spirited driving or track use. While the engagement is harsher, it provides the performance edge needed for competitive driving scenarios.

Installation & Fitment:

The ACT HD/Race Rigid 4 Pad Clutch Kit is a direct fit replacement for the Scion FR-S (2013–2016), Subaru BRZ (2013–2020), and Toyota 86 (2017–2020). Installation requires standard clutch replacement procedures and may be best performed by a professional or experienced enthusiast. No major modifications are necessary, but due to the aggressive nature of the clutch, some adjustment to driving style may be required to accommodate the increased pedal effort and engagement characteristics.

What's Included:

• ACT Heavy Duty pressure plate with diaphragm spring design
• Rigid 4-pad ceramic friction clutch disc with chrome-moly hub
• Installation hardware (where applicable)
• Detailed installation instructions

Ideal For:

This clutch kit is ideal for performance enthusiasts and racers who drive the Scion FR-S, Subaru BRZ, or Toyota 86 and require a clutch capable of handling increased power and aggressive driving. It suits those who participate in track days, autocross, or spirited street driving and want a clutch that offers quick shifts, durability, and enhanced drivetrain feedback. Due to its race-oriented design, it is recommended primarily for race or high-performance use rather than daily commuting.

ACT (Advanced Clutch Technology) engineers performance clutches and flywheels built for consistent engagement, higher torque capacity, and durability in street and race use. The brand emphasizes quality and reliability and is widely used by enthusiasts who need driveline components that can handle repeated hard launches, shifts, and track abuse.