ACT HD/Race Sprung 4 Pad Clutch Kit

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

SB7-HDG4

Overview:

The ACT HD/Race Sprung 4 Pad Clutch Kit is engineered for drivers seeking a high-performance clutch solution tailored to the Scion FR-S, Subaru BRZ, and Toyota 86 models within the specified year ranges. This kit features ACT’s renowned Heavy Duty pressure plate combined with a 4-pad spring-centered race disc, delivering aggressive engagement and enhanced durability for spirited street driving or track use. Designed to handle increased horsepower and torque, the kit offers a balance of light to moderate pedal effort with reliable clutch life, making it an ideal upgrade for enthusiasts who demand both performance and longevity.

Whether you are upgrading your factory clutch for improved throttle response or preparing your vehicle for occasional race conditions, this clutch kit provides consistent clamp load and smooth operation under high stress. Its precise engineering ensures dependable performance without sacrificing drivability.

Key Features:

This clutch kit incorporates advanced technology and robust components to meet the demands of high-performance driving:

• Heavy Duty diaphragm pressure plate with exclusive four-stage heat treatment for increased clamp load and reduced deflection
• 4-pad spring-centered race disc designed to dampen torsional vibrations, reducing noise and enhancing durability
• Wraparound spring windows and thicker spring retainers to minimize stress concentrations and improve spring support
• Precision cover stampings for enhanced rigidity and consistent performance
• Use of select ceramic friction materials for high heat tolerance and extended friction life
• Light to moderate pedal effort with aggressive engagement for faster shifting
• 100% clamp load tested and dynamically computer balanced to ensure smooth operation at high RPMs
• Optimized for smaller disc sizes and engines, making it well-suited for the FR-S, BRZ, and 86 platforms
• Backed by ACT’s industry-leading one-year warranty for peace of mind

Construction & Design:

The ACT HD/Race Sprung 4 Pad Clutch Kit is meticulously engineered using premium materials and manufacturing processes. The diaphragm pressure plate undergoes a rigorous four-stage heat-treating process that enhances strength and longevity while maintaining consistent clamp load. The clutch cover features precision stampings that increase structural rigidity, reducing flex and improving engagement consistency.

The 4-pad spring-centered race disc incorporates a unique spring-center design that effectively dampens torsional vibrations, resulting in quieter operation and improved resistance to failure under demanding conditions. Wraparound spring windows and reinforced spring retainers provide superior spring support, reducing stress concentrations and enhancing overall reliability.

Performance & Sound

This clutch kit delivers a more aggressive engagement compared to stock, allowing for quicker and more precise shifts. While engagement is harsher, it remains manageable with light to moderate pedal effort, making it suitable for both street and race environments. The spring-centered design helps minimize gear rattle commonly associated with performance clutches, contributing to a smoother and quieter driving experience.

Installation & Fitment:

The ACT HD/Race Sprung 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 does not typically necessitate modifications. Proper installation by a qualified technician is recommended to ensure optimal performance and longevity.

What's Included:

• ACT Heavy Duty diaphragm pressure plate
• 4-pad spring-centered race disc with ceramic friction material
• Spring retainers with wraparound spring windows
• Installation hardware (where applicable)
• Detailed installation instructions

Ideal For:

This clutch kit is ideal for enthusiasts and racers who require a durable, high-performance clutch capable of handling increased power and aggressive driving styles. It suits high horsepower street cars, weekend track vehicles, and those looking to upgrade from the factory clutch for improved throttle response and shift speed without sacrificing drivability.

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.