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SKU: XKSU23531-2B | UPC: 9337467303964
XClutch 15-21 Subaru WRX STi Base 2.5L 9in Twin Sprung Ceramic Clutch Kit
This XClutch twin disc clutch kit delivers performance for high horsepower Subaru WRX STI and Impreza models from 2004 to 2021. Sprung ceramic friction discs handle extreme heat in motorsport conditions while the sprung hub cuts shock loading on the transmission. Advanced pressure plate and diaphragm design deliver firm pedal feel with strong clamping power for daily and track use.
Key Features
- Twin Disc Setup: 9-inch (228mm) discs increase torque handling and heat dissipation for boosted 2.5L engines up to 950Nm capacity.
- Sprung Ceramic Friction Material: Resists fade during hard shifts and prolonged high-RPM runs in racing environments.
- Engineered Pressure Plate: Modern multi-layer design balances smooth street driving with track-level grip.
- Optimized Pivot Diaphragm: Provides consistent engagement and firmer pedal feedback under load.
- Sprung Hub Design: Absorbs drivetrain impacts to protect gearbox components during aggressive launches.
Product Notes
- Kit includes pressure plate, twin discs, release bearing, pilot bearing, and alignment tool for complete replacement.
- Follow 500-mile break-in with no launches or slipping to ensure disc bedding.
- Box dimensions 17in x 14in x 7in, product weight 25.6 lbs for easy handling.
Installation Notes
- Professional installation recommended.
- Resurface or replace flywheel. minimum thickness 0.590in (15mm).
- Compatible with OEM or lightweight flywheels. torque pressure plate bolts to 22 ft-lbs in star pattern.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2004-2005 | Subaru | Impreza | WRX |
| 2004-2014 | Subaru | Impreza | WRX STI |
| 2007,2011-2014 | Subaru | Impreza | WRX STI Limited |
| 2010 | Subaru | Impreza | WRX STI Special Edition |
| 2007-2009 | Subaru | Legacy | GT spec.B |
| 2015-2021 | Subaru | WRX STI | Base |
| 2015 | Subaru | WRX STI | Launch Edition |
| 2015-2021 | Subaru | WRX STI | Limited |
| 2020 | Subaru | WRX STI | S209 |
| 2016 | Subaru | WRX STI | Series.HyperBlue |
| 2018 | Subaru | WRX STI | Type RA |
Why Choose XClutch?
- Developed through motorsport testing for reliable power transfer in Subaru AWD platforms.
- Precision-machined components ensure exact fit and long-term durability.
- Proven clamp load increase over stock for modified EJ25 engines.
Frequently Asked Questions
-
Q: Will this fit my 2018 WRX STI Type RA?
A: Yes, direct bolt-on for all 2015-2021 WRX STI variants including Type RA, S209, Limited, and Base with 2.5L engine. -
Q: What friction material is used in the discs?
A: High-temp ceramic compound on sprung steel hubs for grip without glazing under heat. -
Q: What is the warranty and install process?
A: 12-month warranty on defects. pro install advised with flywheel check, full kit assembles in 4-6 hours.
Shipping & Handling
- Method: UPS Ground or FedEx
- Availability: In stock - ships same or next business day
- Packaging: Secure cardboard box 17 x 14 x 7 inches
- Weight: 25.6 lbs
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