XClutch 15-21 Subaru WRX STi Base 2.5L Stage 1 Steel Backed Organic Clutch Kit

XClutch performance upgrades have been engineered to provide the ultimate in clutch performance. Utilising the latest pressure plate design and friction material composition, XClutch upgrades offer the ideal balance between driveability and performance for different vehicle applications. The pivot point and diaphragm design are carefully analysed to ensure positive pedal feel and increased clamping force. With one of the world's most advanced clutch testing and R&D facilities, in-house vehicle testing and over 30 years of clutch experience, XClutch performance upgrades offer the highest levels of engineering and product development for your street vehicle, 4x4 or dedicated race car. Primarily designed for road-going vehicles, XClutch Stage 1 clutch kits deliver substantial increases in performance and torque holding capabilities whilst retaining ease of driveability. The 1T range of clutch kits offer organic friction material bonded directly to a steel backing disc, improving their overall burst strength in performance vehicles. This range is ideal for performance vehicles that require driveability on the street and are often used for higher rpm launches where the clutch will be put to the ultimate test. The 1T range of clutch kits offer organic friction material bonded directly to a steel backing disc, improving their overall burst strength in performance vehicles.

• Friction Disc, Pressure Plate, Release Bearing - Pilot, Aligning Tool and Technical Service Bulletins (as required)
• Single Disc, Steel backed Organic
• Recommended for Street Use
• Heavy Duty, Diaphragm Type

Upgrade the clutch performance of your 2015-2021 Subaru WRX STI with the XClutch XKSU24001-1T Stage 1 clutch kit. Engineered for street-driven performance vehicles, this kit delivers increased torque-holding capability while maintaining smooth, predictable engagement and comfortable drivability. XClutch combines advanced pressure plate design, carefully selected friction materials, and application-specific engineering to provide dependable performance across a range of driving conditions.
The Stage 1 1T clutch kit uses organic friction material bonded directly to a steel backing disc. This construction improves burst strength for performance applications and helps the clutch withstand higher-rpm launches and demanding street use. The heavy-duty diaphragm-style pressure plate is designed to increase clamping force while preserving positive pedal feel, making it suitable for enthusiasts who want stronger clutch performance without sacrificing everyday usability.
The XClutch XKSU24001-1T kit is designed for Subaru WRX STI models equipped with the 2.5L engine from the listed application years. The complete package includes the friction disc, pressure plate, release bearing, pilot bearing, alignment tool, and applicable technical service bulletins. Developed using XClutch’s extensive clutch testing and vehicle-development experience, this kit provides a balanced upgrade for road-going vehicles requiring improved performance and reliable torque capacity.

Features:

• Application: Fits 2015-2021 Subaru WRX STI models with the 2.5L engine

• Stage: Stage 1 performance clutch kit for enhanced torque holding and street drivability

• Friction Material: Organic friction material bonded directly to a steel backing disc

• Clutch Design: Single-disc configuration with a heavy-duty diaphragm-style pressure plate

• Use: Recommended for street-driven performance vehicles and higher-rpm launches

• Included Components: Friction disc, pressure plate, release bearing, pilot bearing, alignment tool, and applicable technical service bulletins

Fitment:
Subaru Impreza WRX STI 2004
Subaru Impreza WRX STI 2005
Subaru Impreza WRX STI 2006
Subaru Impreza WRX STI 2007
Subaru Impreza WRX STI 2008
Subaru Impreza WRX STI 2009
Subaru Impreza WRX STI 2010
Subaru Impreza WRX STI 2011
Subaru Impreza WRX STI 2012
Subaru Impreza WRX STI 2013
Subaru Impreza WRX STI 2014
Subaru Impreza WRX STI Limited 2007
Subaru Impreza WRX STI Limited 2011
Subaru Impreza WRX STI Limited 2012
Subaru Impreza WRX STI Limited 2013
Subaru Impreza WRX STI Limited 2014
Subaru Impreza WRX STI Special Edition 2010
Subaru Legacy GT spec.B 2007
Subaru Legacy GT spec.B 2008
Subaru Legacy GT spec.B 2009
Subaru WRX STI Base 2015
Subaru WRX STI Base 2016
Subaru WRX STI Base 2017
Subaru WRX STI Base 2018
Subaru WRX STI Base 2019
Subaru WRX STI Base 2020
Subaru WRX STI Base 2021
Subaru WRX STI Launch Edition 2015
Subaru WRX STI Limited 2015
Subaru WRX STI Limited 2016
Subaru WRX STI Limited 2017
Subaru WRX STI Limited 2018
Subaru WRX STI Limited 2019
Subaru WRX STI Limited 2020
Subaru WRX STI Limited 2021
Subaru WRX STI S209 2019
Subaru WRX STI Series.HyperBlue 2016
Subaru WRX STI Type RA 2018