SPEC Stage 4 Clutch Kit

2003–2006 Mitsubishi Lancer Evolution VIII / IX 2.0L Turbo

Part #: SM804

Overview

The SPEC Stage 4 Clutch Kit is designed to deliver exceptional performance and durability for Mitsubishi Evolution VIII and IX owners who demand more from their vehicles. Whether you're building a high-horsepower street machine, participating in drag racing, or engaging in spirited road racing, this clutch kit provides the strength and responsiveness needed to handle increased power levels. Built with performance enthusiasts in mind, the Stage 4 kit ensures reliable engagement and long-lasting performance under demanding conditions.

Constructed for those who push their vehicles beyond stock capabilities, the SPEC Stage 4 Clutch Kit offers a significant upgrade over factory components. It is ideal for drivers seeking a clutch that can support aggressive driving styles, high torque, and frequent launches, all while maintaining a level of streetability. Although primarily designed for performance applications, it provides a balance of drivability and strength, making it suitable for daily drivers who also enjoy spirited driving or track days.

Key Features

The SPEC Stage 4 Clutch Kit incorporates advanced materials and engineering to maximize performance and longevity. Key features include:

• Solid hub design with an 8-rivet construction, providing increased strength and resistance to shearing under high torque loads.
• Heat-treated assembly for enhanced durability, ensuring the clutch can withstand aggressive driving and repeated launches without failure.
• Available in 3, 4, or 6 puck configurations, allowing you to choose the level of engagement and streetability that best suits your driving style.
• The 3 puck option offers the lightest pedal feel and smooth engagement, ideal for street use and daily driving.
• The 4 puck configuration strikes a balance between performance and drivability, making it a versatile choice for most enthusiasts.
• The 6 puck setup provides the most aggressive engagement, perfect for drag racing and high-performance applications, though it may be less street-friendly due to increased chatter and pedal effort.
• Designed to support increased horsepower and torque, helping your Evo handle more power reliably.
• Precision manufacturing ensures consistent engagement and smooth operation, even under demanding conditions.

Construction & Design

The SPEC Stage 4 Clutch Kit features a robust, heat-treated steel hub with an 8-rivet design, which significantly enhances the clutch's ability to handle high torque loads without failure. The clutch disc is engineered with high-friction materials that provide excellent grip and fade resistance during aggressive driving. The assembly is meticulously heat-treated to extend its service life and maintain consistent performance over time.

The clutch components are engineered with precision to ensure proper alignment and fitment within the factory transmission housing. The design emphasizes durability, heat dissipation, and engagement consistency, making it a reliable upgrade for high-performance applications. The kit's construction ensures that it can withstand the rigors of racing and spirited driving while maintaining a level of street comfort.

Installation & Fitment

The kit is designed as a bolt-on upgrade for the Mitsubishi Evolution VIII and IX models from 2003 to 2006. Installation typically requires standard mechanical skills and tools; however, due to the high-performance nature of the components, professional installation is recommended to ensure proper setup and alignment. No cutting, drilling, or modifications are necessary, and the kit is designed to fit within the stock transmission housing without additional adjustments.

• Complete clutch assembly including pressure plate, clutch disc, and release bearing
• All necessary hardware and instructions for installation

What's Included

• Stage 4 clutch pressure plate
• High-performance clutch disc (available in 3, 4, or 6 puck configurations)
• Release bearing
• Installation hardware and instructions

Ideal For

• High-performance street and race applications
• Drag racing, road racing, and spirited driving
• Owners seeking a durable, high-hold clutch capable of supporting increased power
• Enthusiasts who want a reliable upgrade over stock clutch components