OS Giken Grand Touring Series Soft Aluminum Clutch

2012–2021 Scion FR-S, Subaru BRZ, Toyota 86 FA20 Engine

TY421-AP6

Overview:

The OS Giken Grand Touring Series Soft Aluminum Clutch is a premium performance clutch designed specifically for the Scion FR-S, Subaru BRZ, and Toyota 86 equipped with the FA20 engine. Engineered to deliver smooth engagement and reliable power transfer, this clutch is ideal for enthusiasts seeking enhanced drivability without sacrificing comfort. It offers a refined balance between street-friendly operation and spirited driving capability, making it a perfect upgrade for daily drivers and weekend racers alike.

Built by OS Giken, a brand renowned for precision engineering and motorsport heritage, this clutch provides consistent performance under various driving conditions. Whether you are upgrading from the factory clutch or replacing a worn unit, the Grand Touring Series Soft Aluminum Clutch ensures improved pedal feel and durability for your lightweight sports coupe.

Key Features:

This clutch combines advanced materials and thoughtful design to optimize engagement and longevity. Key features include:

• Soft aluminum pressure plate for reduced weight and improved heat dissipation
• Multi-plate design engineered for smooth, progressive engagement
• High-quality friction material optimized for street and light track use
• Enhanced pedal feel with reduced effort for daily driving comfort
• Precision-machined components for consistent clutch release and engagement
• Durable construction to withstand repeated use and moderate power upgrades
• Direct fitment for Scion FR-S, Subaru BRZ, and Toyota 86 with no modifications required

Construction & Design:

The clutch features a soft aluminum pressure plate that significantly reduces rotational mass compared to traditional cast iron designs. This reduction in weight helps improve throttle response and overall drivetrain efficiency. The aluminum construction also enhances heat dissipation, reducing the risk of clutch fade during spirited driving or occasional track sessions.

OS Giken utilizes high-grade friction materials that provide excellent bite and smooth engagement, minimizing chatter and harshness often associated with performance clutches. The precision engineering and tight manufacturing tolerances ensure reliable operation and long service life, even under demanding conditions.

Installation & Fitment:

This clutch is a direct replacement for the factory clutch on the Scion FR-S, Subaru BRZ, and Toyota 86 models equipped with the FA20 engine, covering model years 2012 through 2021. Installation requires standard clutch replacement procedures and can be performed by experienced DIYers or professional technicians. No modifications to the transmission or drivetrain components are necessary, ensuring a straightforward upgrade path.

Proper break-in procedures should be followed to maximize clutch life and performance. This clutch is compatible with stock flywheels and pressure plates designed for these vehicles.

What's Included:

• OS Giken Grand Touring Series Soft Aluminum Clutch assembly
• Pressure plate
• Friction disc(s)
• Release bearing (if applicable)
• Installation hardware (as required)

Ideal For:

This clutch is ideal for enthusiasts who want a reliable, smooth-engaging performance clutch for their Scion FR-S, Subaru BRZ, or Toyota 86. It suits drivers who enjoy spirited street driving, occasional track days, or those upgrading from the factory clutch to handle moderate power increases without compromising daily drivability.

OS Giken is a Japan-based performance drivetrain brand best known for race-proven multi-plate clutches and advanced limited-slip differentials like the Super Lock LSD. Built for high-grip, high-load driving, OS Giken components are designed to deliver consistent lockup, durability, and tunability—ideal for track, drift, and serious street performance builds.