XClutch 15-21 Subaru WRX STi Base 2.5L Stage 1 Extra HD Sprung 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. XClutch Stage 1X performance clutch kits have been designed for the next level of organic friction performance and provide increased clamping force for higher horsepower street applications. XClutch Stage 1X performance clutch kits have been designed for the next level of organic friction performance and provide increased clamping force for higher horsepower street applications.

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

Upgrade the clutch performance of your 2015-2021 Subaru WRX STI with the XClutch Stage 1X performance clutch kit, part number xclXKSU24001-1AX. Designed for higher-horsepower street applications, this kit combines increased clamping force with a sprung organic friction disc to improve torque capacity while maintaining smooth, predictable drivability. It is engineered for road-going vehicles that require stronger clutch performance without sacrificing everyday usability.
XClutch Stage 1X kits use an extra heavy-duty diaphragm-style pressure plate and advanced organic friction material to deliver reliable engagement and enhanced holding capability. The pressure plate pivot point and diaphragm design are carefully developed to provide positive pedal feel and consistent performance during spirited street driving. The single-disc configuration supports responsive engagement and is well suited to drivers seeking a practical upgrade over the factory clutch system.
The XClutch xclXKSU24001-1AX kit is developed using XClutch engineering, clutch testing, and vehicle development expertise. It is recommended for street use and is designed to support increased power levels while retaining a manageable pedal and comfortable operation. Application coverage includes Subaru WRX STI models from 2015 through 2021 equipped with the 2.5L engine. Verify vehicle specifications and installation requirements before purchase.
The kit includes the friction disc, pressure plate, release bearing, pilot bearing, aligning tool, and applicable technical service bulletins. Its integrated component package helps provide the parts needed for a complete clutch upgrade and consistent system operation. XClutch is the brand behind this Stage 1X performance solution, offering a purpose-built replacement for enthusiasts who need greater torque-holding performance in a street-focused Subaru WRX STI.

Features:

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

• Performance Level: Stage 1X clutch kit designed for higher-horsepower street applications

• Pressure Plate: Extra heavy-duty diaphragm-style design for increased clamping force

• Friction Disc: Single-disc, sprung organic construction for smooth engagement and improved torque capacity

• Recommended Use: Street driving and performance-oriented road vehicles

• Included Components: Friction disc, pressure plate, release bearing, pilot bearing, aligning 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