SPEC Stage 4 Clutch Kit

2013–2021 Subaru BRZ / Scion FR-S / Toyota 86 2.0L

Part #: SU334

Overview

The SPEC Stage 4 Clutch Kit is engineered for enthusiasts seeking maximum performance and durability for their Subaru BRZ, Scion FR-S, or Toyota 86. Designed to handle increased power levels and spirited driving, this clutch kit offers a significant upgrade over stock components, making it ideal for street, drag racing, and road racing applications. Whether you're pushing your vehicle to its limits on the track or enjoying aggressive street driving, the Stage 4 kit provides reliable engagement and improved pedal feel.

Built with high-performance materials and precision engineering, the SPEC Stage 4 Clutch Kit ensures your vehicle can support higher horsepower and torque, especially when paired with other modifications such as turbochargers or upgraded exhaust systems. Its robust construction guarantees long-lasting performance, even under demanding conditions, giving you confidence during intense driving sessions.

Key Features

The SPEC Stage 4 Clutch Kit incorporates advanced design and high-quality materials to deliver superior performance and durability. Key features include:

• Solid hub design with an 8-rivet construction for enhanced strength and reliability during high-stress driving.
• Heat-treated components to withstand the elevated temperatures generated during aggressive driving and racing.
• Available in 3, 4, or 6 puck configurations, allowing you to choose the optimal setup for your driving style and application.
• The 3-puck option offers the lightest engagement, ideal for street use and daily driving with minimal pedal effort.
• The 4-puck configuration strikes a balance between streetability and performance, providing good engagement without sacrificing drivability.
• The 6-puck setup delivers the smoothest engagement while supporting high horsepower loads, perfect for racing applications.
• Designed for maximum torque capacity and consistent power transfer, reducing slip and ensuring reliable performance.
• Precision manufacturing and heat treatment processes ensure longevity and resistance to wear and warping.
• Suitable for use in vehicles with upgraded powertrains, including turbocharged or supercharged setups.

Construction & Design

The SPEC Stage 4 Clutch Kit features a high-strength, heat-treated steel hub with a solid 8-rivet design, providing exceptional durability under high torque conditions. The clutch disc incorporates high-friction materials optimized for aggressive engagement and long service life. The pressure plate is engineered for consistent clamping force, ensuring reliable power transfer and pedal feel. The entire assembly is designed to withstand the rigors of racing and spirited street driving, with precise manufacturing tolerances that guarantee a perfect fit and smooth operation.

Installation & Fitment

The SPEC Stage 4 Clutch Kit is a bolt-on upgrade that installs using your vehicle's existing flywheel and clutch housing. No cutting, drilling, or modifications are required, making it a straightforward upgrade for experienced DIY enthusiasts or professional installers. Proper break-in procedures are recommended to ensure optimal performance and longevity of the clutch components. It is compatible with the stock flywheel or aftermarket options designed for high-performance use.

• Direct replacement for factory clutch components
• No additional tuning or adjustments needed for installation
• Requires standard tools and basic mechanical knowledge

What's Included

• High-performance clutch disc (3, 4, or 6 puck configuration)
• Heavy-duty pressure plate
• Release bearing
• Alignment tool
• Installation instructions

Ideal For

• Performance enthusiasts seeking increased power handling
• Drivers involved in drag racing, road racing, or spirited street driving
• Owners upgrading their turbocharged or supercharged Subaru BRZ, Scion FR-S, or Toyota 86
• Anyone looking for a reliable, high-performance clutch upgrade