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XClutch 15-21 Subaru WRX STi Base 2.5L 8in Twin Sprung Ceramic Clutch Kit

SKU: XCLXKSU20521-2B

Clutch Kits

XCL Clutch - 8in Twin Sprung Ceramic

XClutch 15-21 Subaru WRX STi Base 2.5L 8in Twin Sprung Ceramic Clutch Kit

SKU: XCLXKSU20521-2B

Clutch Kits

XCL Clutch - 8in Twin Sprung Ceramic

A$4,666.89
Available from MFR. This item is available from the manufacturer's distribution centre. The dispatch timeframe shown is an estimate based on historical order processing and release times for this part. This item is not held in our own warehouse, and actual dispatch timing may vary depending on manufacturer workload and logistics at the time of ordering.
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Description

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.The XClutch 8 inch Race Clutch is designed to suit a wide range of vehicles commonly used in motorsport applications. As the clutch of choice for many club level racers and drifters around the world, these kits offer a great balance between torque holding capability, heat capacity and weight to suit a variety of different motorsport categories. The XClutch 8 inch sprung race clutch offers an independent sprung hub that helps to absorb harsh engagement. The 8 inch race clutch kits consist of a performance flywheel, sprung-centered ceramic clutch discs, aluminium cover assembly and release bearing (if applicable).

Part Type

Clutch Kits

Data: v4.2 - Upd: 2026-09-30 17:42:46

Features

  • Friction Disc, Pressure Plate, Release Bearing, Pull to Push Actuation Conversion Components, Flywheel - Pilot, Aligning Tool and Technical Service Bulletins (as required)
  • Lightweight Alloy Hat
  • Recommended for Track Use
  • Twin Disc, Sprung Ceramic

Specifications

Product Attributes - Brand
XCLUTCH
Product Attributes - Manufacturer's Part Number
XKSU20521-2B
Product Attributes - Part Type
Clutch Kits
Product Attributes - Product Line
XClutch Stage 2 Clutch Kits
Product Attributes - UPC
09337467250299
Product Attributes - Clutch Usage
Performance
Product Attributes - Clutch Disc Quantity
2
Product Attributes - Flywheel Included
Yes
Product Attributes - Input Spline Quantity
24
Product Attributes - Input Shaft Diameter
1.000 in.
Product Attributes - Disc Diameter (in.)
7.874 in.
Product Attributes - Disc Diameter (mm)
200mm
Product Attributes - Disc Material
Ceramic
Product Attributes - Hub Style
Sprung
Product Attributes - Pressure Plate Style
Diaphragm
Product Attributes - Throwout Bearing Included
Yes
Product Attributes - Alignment Tool Included
Yes
Product Attributes - Pilot Bushing Included
No
Product Attributes - Flywheel Material
Chromoly
Product Attributes - Counterweight Assist
No
Product Attributes - Mounting Hardware Included
Yes
Product Attributes - Quantity
Sold as a kit.

Reference Information

Brand Name/s Xclutch
StreetFX SKU xclXKSU20521-2B
SFX Item ID 4043588
Supplier Item Code 4043588
Manufacturer SKU XKSU20521-2B
Manufacturer UPC 9337467250299
Alternative References 8in, 2.5L

Brochures

Compatibility

Application Data
  • MakeSUBARU
    ModelIMPREZA
    SubmodelWRX
    Beginning Year2004
    Ending Year2005
    Engine TypeH4
    Liter2.0
    CC1994
    Engine FamilySubaru 4-cylinder
    Engine Size2.0L/1994cc
    Application NotesAspiration: Turbocharged, Cylinder Head Type: DOHC, Drive Type: AWD, Engine Manufacturer: Subaru, Fuel Type: GAS, Ignition System Type: Distributorless, Transmission Control Type: Manual, Valves Per Engine: 16
  • MakeSUBARU
    ModelIMPREZA
    SubmodelWRX STI
    Beginning Year2004
    Ending Year2014
    Engine TypeH4
    Liter2.5
    CC2458
    Engine FamilySubaru 4-cylinder
    Engine Size2.5L/2458cc
    Application NotesAspiration: Turbocharged, Cylinder Head Type: DOHC, Drive Type: AWD, Engine Manufacturer: Subaru, Fuel Delivery Sub Type: MFI, Fuel Deliver Type: FI, Fuel Type: GAS, Ignition System Type: Distributorless, Transmission Control Type: Manual, Transmission Number of Speeds: 6, Valves Per Engine: 16
  • MakeSUBARU
    ModelIMPREZA
    SubmodelWRX STI LIMITED
    Beginning Year2007
    Ending Year2007
    Engine TypeH4
    Liter2.5
    CC2458
    Engine FamilySubaru 4-cylinder
    Engine Size2.5L/2458cc
    Application NotesAspiration: Turbocharged, Cylinder Head Type: DOHC, Drive Type: AWD, Engine Manufacturer: Subaru, Fuel Delivery Sub Type: MFI, Fuel Deliver Type: FI, Fuel Type: GAS, Ignition System Type: Distributorless, Transmission Control Type: Manual, Transmission Number of Speeds: 6, Valves Per Engine: 16
  • MakeSUBARU
    ModelIMPREZA
    SubmodelWRX STI LIMITED
    Beginning Year2011
    Ending Year2014
    Engine TypeH4
    Liter2.5
    CC2458
    Engine FamilySubaru 4-cylinder
    Engine Size2.5L/2458cc
    Application NotesAspiration: Turbocharged, Cylinder Head Type: DOHC, Drive Type: AWD, Engine Manufacturer: Subaru, Fuel Delivery Sub Type: MFI, Fuel Deliver Type: FI, Fuel Type: GAS, Ignition System Type: Distributorless, Transmission Control Type: Manual, Transmission Number of Speeds: 6, Valves Per Engine: 16
  • MakeSUBARU
    ModelIMPREZA
    SubmodelWRX STI SPECIAL EDITION
    Beginning Year2010
    Ending Year2010
    Engine TypeH4
    Liter2.5
    CC2458
    Engine FamilySubaru 4-cylinder
    Engine Size2.5L/2458cc
    Application NotesAspiration: Turbocharged, Cylinder Head Type: DOHC, Drive Type: AWD, Engine Manufacturer: Subaru, Fuel Delivery Sub Type: MFI, Fuel Deliver Type: FI, Fuel Type: GAS, Ignition System Type: Distributorless, Transmission Control Type: Manual, Transmission Number of Speeds: 6, Valves Per Engine: 16
  • MakeSUBARU
    ModelLEGACY
    SubmodelGT SPEC.B
    Beginning Year2007
    Ending Year2009
    Engine TypeH4
    Liter2.5
    CC2458
    Engine FamilySubaru 4-cylinder
    Engine Size2.5L/2458cc
    Application NotesAspiration: Turbocharged, Cylinder Head Type: DOHC, Drive Type: AWD, Engine Manufacturer: Subaru, Fuel Delivery Sub Type: MFI, Fuel Deliver Type: FI, Fuel Type: GAS, Ignition System Type: Distributorless, Transmission Control Type: Manual, Transmission Number of Speeds: 6, Valves Per Engine: 16
  • MakeSUBARU
    ModelWRX STI
    SubmodelBASE
    Beginning Year2015
    Ending Year2021
    Engine TypeH4
    Liter2.5
    CC2458
    Engine FamilySubaru 4-cylinder
    Engine Size2.5L/2458cc
    Application NotesAspiration: Turbocharged, Cylinder Head Type: DOHC, Drive Type: AWD, Engine Manufacturer: Subaru, Fuel Delivery Sub Type: MFI, Fuel Deliver Type: FI, Fuel Type: GAS, Ignition System Type: Distributorless, Transmission Control Type: Manual, Transmission Number of Speeds: 6, Valves Per Engine: 16
  • MakeSUBARU
    ModelWRX STI
    SubmodelLAUNCH EDITION
    Beginning Year2015
    Ending Year2015
    Engine TypeH4
    Liter2.5
    CC2458
    Engine FamilySubaru 4-cylinder
    Engine Size2.5L/2458cc
    Application NotesAspiration: Turbocharged, Cylinder Head Type: DOHC, Drive Type: AWD, Engine Manufacturer: Subaru, Fuel Delivery Sub Type: MFI, Fuel Deliver Type: FI, Fuel Type: GAS, Ignition System Type: Distributorless, Transmission Control Type: Manual, Transmission Number of Speeds: 6, Valves Per Engine: 16
  • MakeSUBARU
    ModelWRX STI
    SubmodelLIMITED
    Beginning Year2015
    Ending Year2021
    Engine TypeH4
    Liter2.5
    CC2458
    Engine FamilySubaru 4-cylinder
    Engine Size2.5L/2458cc
    Application NotesAspiration: Turbocharged, Cylinder Head Type: DOHC, Drive Type: AWD, Engine Manufacturer: Subaru, Fuel Delivery Sub Type: MFI, Fuel Deliver Type: FI, Fuel Type: GAS, Ignition System Type: Distributorless, Transmission Control Type: Manual, Transmission Number of Speeds: 6, Valves Per Engine: 16
  • MakeSUBARU
    ModelWRX STI
    SubmodelS209
    Beginning Year2019
    Ending Year2019
    Engine TypeH4
    Liter2.5
    CC2458
    Engine FamilySubaru 4-cylinder
    Engine Size2.5L/2458cc
    Application NotesAspiration: Turbocharged, Cylinder Head Type: DOHC, Drive Type: AWD, Engine Manufacturer: Subaru, Fuel Delivery Sub Type: MFI, Fuel Deliver Type: FI, Fuel Type: GAS, Ignition System Type: Distributorless, Transmission Control Type: Manual, Transmission Number of Speeds: 6, Valves Per Engine: 16
  • MakeSUBARU
    ModelWRX STI
    SubmodelSERIES.HYPERBLUE
    Beginning Year2016
    Ending Year2016
    Engine TypeH4
    Liter2.5
    CC2458
    Engine FamilySubaru 4-cylinder
    Engine Size2.5L/2458cc
    Application NotesAspiration: Turbocharged, Cylinder Head Type: DOHC, Drive Type: AWD, Engine Manufacturer: Subaru, Fuel Delivery Sub Type: MFI, Fuel Deliver Type: FI, Fuel Type: GAS, Ignition System Type: Distributorless, Transmission Control Type: Manual, Transmission Number of Speeds: 6, Valves Per Engine: 16
  • MakeSUBARU
    ModelWRX STI
    SubmodelTYPE RA
    Beginning Year2018
    Ending Year2018
    Engine TypeH4
    Liter2.5
    CC2458
    Engine FamilySubaru 4-cylinder
    Engine Size2.5L/2458cc
    Application NotesAspiration: Turbocharged, Cylinder Head Type: DOHC, Drive Type: AWD, Engine Manufacturer: Subaru, Fuel Delivery Sub Type: MFI, Fuel Deliver Type: FI, Fuel Type: GAS, Ignition System Type: Distributorless, Transmission Control Type: Manual, Transmission Number of Speeds: 6, Valves Per Engine: 16

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