Competition Clutch Stage 4 Sprung 1620 Series Clutch Kit

Fitment: 2004-2016 Subaru Impreza WRX / STI

Part #: 15030-1620

Overview

The Competition Clutch Stage 4 Sprung 1620 Series Clutch Kit is engineered for high-performance Subaru enthusiasts who demand reliable, aggressive engagement for spirited driving and increased horsepower applications. Designed specifically for the 2004-2016 Subaru Impreza WRX and STI models, this clutch kit offers a robust upgrade to handle demanding power levels while maintaining smooth operation. Whether you’re upgrading for track days, drag racing, or enhanced daily driving, this clutch provides the durability and performance support needed to keep your vehicle responsive and reliable under high-stress conditions. This kit is ideal for drivers seeking a combination of increased clamp load, improved heat dissipation, and a firm pedal feel. It supports aggressive driving styles and high horsepower builds, ensuring your vehicle responds confidently during spirited acceleration and aggressive shifts. Built with high-quality materials, it helps optimize power transfer and clutch longevity, making it a trusted choice for performance-oriented Subaru owners.

Key Features

This clutch kit features a carefully engineered design focused on durability and performance. Key features include:

• High-performance sprung hub design for smooth engagement and reduced driveline shock
• Heavy-duty ceramic and metallic friction materials for increased heat resistance and longevity
• Sturdy pressure plate with increased clamp load for improved power transfer
• Precision-machined components for consistent operation and reliable engagement
• Designed to withstand high horsepower and torque levels common in modified Subaru engines
• Optimized for aggressive driving and spirited street or track use

Construction & Design

The clutch components are crafted from high-quality, heat-resistant materials to ensure durability under demanding conditions. The sprung hub design helps absorb shock during aggressive shifts, reducing stress on drivetrain components and enhancing overall driving comfort. The pressure plate features a robust construction that maintains consistent clamping force, supporting high horsepower applications.

Driving Feel & Feedback

This Stage 4 clutch provides a firm pedal feel with a responsive engagement, ideal for drivers who want a direct connection to their vehicle’s powertrain. The sprung hub design helps smooth out engagement, minimizing chatter and driveline shock during daily driving or spirited runs. It offers a confident, predictable response that enhances driving engagement without sacrificing reliability.

Installation & Fitment

Installation requires proper alignment and torque specifications, and it is recommended to have a qualified technician perform the upgrade. Fitment should be verified against the vehicle’s specifications and the part number provided.

What’s Included

The kit includes the pressure plate, clutch disc, release bearing, and necessary hardware for installation, providing a complete upgrade solution for your Subaru STI or Impreza WRX.