Clutch Masters FX300 Stage 3 Clutch Kit

Fitment: 2006-2014 Subaru WRX

Part #: 15021-HDTZ

Overview

The Clutch Masters FX300 Stage 3 Clutch Kit is a high-performance upgrade designed specifically for Subaru WRX models from 2006 to 2014. This kit is ideal for street enthusiasts and weekend racers who seek a reliable, durable clutch capable of handling increased power and spirited driving. It features a robust Power Plus I Pressure Plate paired with a Steel Back Segmented Kevlar disc, providing a balance of increased holding capacity and smooth engagement. Whether you're running a naturally aspirated engine with cylinder head modifications, a turbocharged setup with medium boost, or a supercharger, this clutch helps support your vehicle’s performance demands while maintaining long service life and positive engagement characteristics. Designed for drivers who want a noticeable upgrade in response and durability, the FX300 Stage 3 clutch kit offers a confident pedal feel with only slightly increased pedal pressure. Its construction ensures consistent performance under demanding conditions, making it suitable for both daily driving and performance applications. The kit’s components are engineered to withstand high heat and stress, providing peace of mind during aggressive driving sessions or extended spirited drives.

Key Features

This clutch kit combines advanced materials and thoughtful design to deliver reliable performance and longevity. Key features include:

• Power Plus I Pressure Plate for increased clamping force
• Steel Back Segmented Kevlar disc for durability and heat resistance
• Designed for medium-boost turbo, supercharged, or nitrous applications up to 100hp
• Positive engagement with smooth pedal feel
• Long-lasting disc with high wear resistance
• Engineered for street and light track use
• Compatible with stock or upgraded flywheels

Construction & Design

The FX300 Stage 3 clutch kit features a segmented Kevlar disc backed by steel, offering excellent heat dissipation and wear resistance. The Power Plus I Pressure Plate is designed to provide consistent clamping force, ensuring reliable power transfer and engagement. The materials and structural design focus on durability and performance under high-stress conditions, making it suitable for enthusiasts pushing their vehicles beyond stock specifications.

Driving Feel & Feedback

This clutch kit provides a firm, positive engagement with a slight increase in pedal effort, giving drivers a more connected and confident driving experience. It helps improve throttle response and shift feel, especially during aggressive driving or spirited street use, without sacrificing drivability or comfort.

Installation & Fitment

Installation should be performed by a qualified technician familiar with Subaru WRX models. Proper alignment and torque specifications are essential for optimal performance and longevity. Fitment verification against the part number is recommended to ensure compatibility.

What’s Included

The kit includes the Power Plus I Pressure Plate, Steel Back Segmented Kevlar disc, release bearing, and necessary hardware for installation.