ACT Heavy Duty/Race Rigid 4 Pad Clutch Kit

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

SB7-HDR4

Overview:

The ACT Heavy Duty/Race Rigid 4 Pad Clutch Kit is engineered for drivers seeking aggressive engagement and enhanced performance in their Scion FR-S, Subaru BRZ, or Toyota 86. Designed to handle the rigors of spirited street driving and track use, this clutch kit delivers increased clamp load and durability while maintaining manageable pedal effort. It is ideal for enthusiasts who demand quicker shifts and reliable clutch operation under high-stress conditions.

Featuring ACT’s most popular Heavy Duty pressure plate combined with a rigid 4-pad race disc, this kit offers a balance of performance and longevity. The clutch system is precision-engineered to maximize clamp force, reduce deflection, and extend service life, making it a trusted upgrade for performance-oriented drivers.

Key Features:

Built with advanced materials and innovative design, the ACT HD/Race Rigid 4 Pad Clutch Kit provides:

• Heavy Duty pressure plate with exclusive diaphragm design for increased clamp load and reduced deflection
• Four-stage heat-treated diaphragms for superior strength and consistent performance
• Precision cover stampings that enhance rigidity and ensure consistent clamp force
• 4-pad rigid 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
• Aggressive engagement with moderate pedal effort, optimized for smaller engine applications
• 100% clamp load tested and dynamically computer balanced for smooth high-RPM reliability
• Extended friction life supported by ACT’s exclusive diaphragm design
• Backed by ACT’s industry-leading one-year warranty

Construction & Design:

The ACT HD/Race Rigid 4 Pad Clutch Kit is meticulously engineered using premium materials to withstand the demands of performance driving. The pressure plate’s diaphragm spring undergoes a rigorous four-stage heat treatment process, ensuring exceptional durability and consistent clamp load throughout its lifespan. The cover features precision stampings that increase structural rigidity, minimizing flex and improving pedal feel.

The 4-pad rigid race disc incorporates ceramic friction materials known for their high heat tolerance and consistent engagement characteristics. Its chrome-moly hub is heat-treated to resist wear and handle the stresses of aggressive driving. The lightweight yet rigid design reduces rotational mass, promoting faster engine response and smoother gear changes.

Performance & Sound

This clutch kit delivers a more aggressive engagement compared to stock, resulting in quicker and more precise shifts. Drivers will notice a firmer pedal feel and increased gear rattle typical of rigid race discs, which is a trade-off for enhanced performance. The clutch’s design supports high heat tolerance, making it suitable for demanding driving conditions such as track days and spirited street use.

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 benefit from professional installation to ensure proper alignment and engagement. No major modifications are necessary, but it is recommended to inspect the flywheel and related components during installation for optimal performance and longevity.

What's Included:

• ACT Heavy Duty diaphragm pressure plate
• 4-pad rigid race ceramic friction disc with chrome-moly hub
• Installation hardware (as 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 aggressive driving and track conditions. It suits drivers looking for faster shifts, increased clamp load, and a durable clutch system that can withstand moderate to heavy use without sacrificing pedal effort excessively. Note that this clutch is recommended for race use and aggressive street driving 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.