X-Clutch XKSU18521-2E Stage Twin Disc Rigid Ceramic Clutch Kit - 5

The X-Clutch XKSU18521-2E is a high-performance Stage 5 twin disc clutch kit engineered for modified Subaru STI models requiring maximum torque capacity and durability. Part of the XClutch Motorsports line, this complete kit features rigid solid ceramic clutch discs designed for racing applications and high-horsepower street vehicles with moderate bolt-ons.

Key Features:

• 7.25-inch twin solid ceramic clutch discs with rigid construction for maximum power transfer
• Chromoly flywheel included for lightweight design and improved throttle response
• High torque capacity ideal for circuit racing, time attack, and drift applications
• Aluminum cover assembly with performance-oriented clamping force
• Complete kit includes release bearing, alignment tool, and clutch installation tool
• Engineered for vehicles with moderate to aggressive modifications
• Designed to handle high-horsepower applications where OEM and single-disc clutches fail

The rigid ceramic disc design delivers exceptional grip and heat resistance under extreme conditions, making this clutch kit the ultimate solution for serious performance enthusiasts and racers. Note that multi-disc upgrades may result in increased noise, vibration, and harshness (NVH) in the cabin, which is a normal characteristic of motorsport-grade clutch systems.