• ACT Heavy Duty Performance Street Sprung Disc Clutch Kit | Subaru WRX STI (04-21) (SB10-HDSS)
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ACT Heavy Duty Performance Street Sprung Disc Clutch Kit | Subaru WRX STI (04-21) (SB10-HDSS)

ACT Heavy Duty Performance Street Sprung Disc Clutch Kit | Subaru WRX STI (04-21) (SB10-HDSS)

SB10-HDSS

In stock

$833.00 USD
$1,028.00 USD $833.00 USD
kADDITIONAL DISCOUNTS APPLIED AT CHECKOUT Sold out

The ACT Heavy Duty Performance Street Sprung Disc Clutch Kit is a high-performance clutch upgrade designed specifically for Subaru WRX STI models from 2004 to 2021. Constructed with premium materials, this clutch kit features a sprung disc that enhances durability and smooth engagement, making it suitable for spirited driving, daily commuting, and moderate performance modifications. It offers increased holding capacity and reliable performance under demanding conditions, ensuring a balanced combination of strength and drivability. The kit is engineered to deliver improved clutch feel and longevity, supporting drivers who seek a dependable upgrade without sacrificing daily comfort.

This clutch kit is a direct replacement for stock components on Subaru WRX STI vehicles within the 2004–2021 model years. It is compatible with various engine configurations and designed for bolt-on installation, providing a straightforward upgrade process. The kit includes a sprung disc and necessary components for installation, making it ideal for enthusiasts looking to enhance their vehicle’s clutch performance for street and moderate track use. Suitable for those seeking a durable, high-quality clutch solution that supports spirited driving and daily use alike.

Overview

ACT Heavy Duty Performance Street Sprung Disc Clutch Kit

Part #: SB10-HDSS

Overview

The ACT Heavy Duty Performance Street Sprung Disc Clutch Kit is designed to enhance the durability and performance of your Subaru WRX STI (04-21). This high-quality clutch kit is ideal for enthusiasts seeking a reliable upgrade that supports spirited driving, daily use, and moderate performance modifications. Engineered with premium materials, it provides a balanced combination of increased holding capacity and smooth engagement, making it suitable for street-driven vehicles that demand both performance and longevity. Whether you're upgrading for improved response or increased load capacity, this clutch kit helps ensure your vehicle maintains optimal power transfer and pedal feel under demanding conditions.

Key Features

This clutch kit features a carefully engineered design focused on durability and consistent performance. Its key features include:
  • Heavy-duty sprung disc for smooth engagement and reduced driveline shock
  • High-friction ceramic and metallic composite lining for excellent heat resistance
  • Robust pressure plate designed to handle increased torque loads
  • Precision-machined components for reliable operation and longevity
  • Compatible with stock and lightly modified engines for versatile use
  • Designed to improve pedal feel and response during aggressive driving
  • Constructed with high-quality steel and friction materials for durability

Construction & Design

The clutch features a heavy-duty pressure plate with a reinforced diaphragm spring, ensuring consistent clamping force and durability under high-stress conditions. The sprung disc incorporates a multi-rivet design for enhanced heat dissipation and wear resistance, supporting long-term performance. The materials used are selected for their ability to withstand high temperatures and repetitive engagement cycles, making this kit a reliable choice for daily drivers and enthusiasts alike.

Driving Feel & Feedback

This clutch kit offers a firm yet smooth pedal feel, providing confident engagement and improved feedback during acceleration and shifting. It helps support better power transfer and responsiveness, especially during spirited driving or moderate modifications, without sacrificing everyday drivability.

Installation & Fitment

Installation requires standard clutch replacement procedures, including transmission removal and flywheel inspection. Proper alignment and torque specifications should be followed to ensure optimal performance and longevity. Fitment should be verified against the vehicle's specifications and the part number provided.

What’s Included

The package includes the heavy-duty pressure plate, sprung disc, release bearing, and necessary hardware for installation, providing everything needed for a complete upgrade.
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