SKU: XKSU23531-2G | UPC: 9337467255546
XClutch 15-21 Subaru WRX STi Base 2.5L 9in Twin Solid Organic Clutch Kit
Transform your Subaru WRX STI's power delivery with the XClutch 9-inch twin disc solid organic clutch kit designed for 2015-2021 Base 2.5L models and compatible with 2004-2021 Impreza WRX STI variants. This kit delivers high torque capacity up to 900Nm while maintaining smooth engagement and daily drivability for high horsepower street applications. Engineered with advanced friction materials and pressure plate technology for reliable performance in demanding conditions.
Key Features
- 9-Inch Twin Disc Design: Handles extreme torque loads from tuned EJ25 engines with reduced heat buildup and consistent power transfer.
- Solid Organic Friction Material: Provides progressive engagement and long-lasting durability optimized for street-driven high power Subarus.
- Advanced Pressure Plate: Increases clamping force by 30% over stock for quicker shifts and better hold under boost.
- Precision Diaphragm Pivot: Ensures light pedal effort and positive feel without compromising on high-RPM performance.
- High Torque Capacity: Rated for 900Nm supports 500+whp builds in WRX STI race and street cars worldwide.
Product Notes
- Requires proper break-in procedure of 500 easy miles with no aggressive launches.
- Use XClutch-approved flywheel for best results and longevity.
- Ships fully assembled ready for direct bolt-in replacement.
Installation Notes
- Professional installation recommended.
- Compatible with Subaru 6-speed TY856WB1AA transmission and EJ257 2.5L engines.
- Reuse or replace stock pilot bearing and throwout bearing for smooth operation.
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?
- Backed by 30+ years of clutch engineering and in-house dyno testing.
- Proven in high-power street cars and race vehicles globally.
- Advanced R&.D facility ensures perfect fit and function for Subaru applications.
Frequently Asked Questions
-
Q: Does this fit 2015-2021 WRX STI Base with 6-speed manual?
A: Yes, direct bolt-on for EJ257 2.5L 6-speed TY856 transmissions in Base, Limited, Launch Edition, S209, Series.HyperBlue, and Type RA models. -
Q: What friction material is used and is it street friendly?
A: Solid organic material offers smooth daily driving with high heat resistance for 500+whp street builds unlike aggressive ceramics. -
Q: What is the warranty and break-in process?
A: 12-month warranty against defects. Follow 500-mile break-in with light throttle and no slipping for full life expectancy.
Shipping & Handling
- Method: UPS Ground or FedEx - free shipping on orders over $99
- Availability: In stock - ships same or next business day
- Packaging: Secure foam-packed box measuring 14 x 14 x 8 inches
- Weight: 28 lbs
Clutch Components
Clutch components for manual transmission builds are stocked at Black Ops Auto Works, spanning single and multi disc clutch kits, master cylinders, clutch lines, clutch forks, and rebuild kits. Shop applications for Subaru WRX and STI, Honda and Acura D-Series, Nissan Skyline GT-R and 350Z, BMW E46 M3, Ford Mustang GT and GT500, GM LS platforms, and Dodge Challenger HEMI. Kits range from street-friendly organic disc setups to twin and triple plate racing clutches for high horsepower and forced induction builds. Black Ops Auto Works carries 1,537 clutch component SKUs. What This Category Covers This collection includes clutch covers, clutch discs, clutch forks, clutch lines, clutch master cylinders, clutch rebuild kits, and both single and multi disc clutch kits for manual transmission vehicles across import and domestic platforms. Choosing a Clutch Stage for Your Build Stage 1 clutches suit lightly modified street engines up to about 350 horsepower, Stage 2 kits cover 350 to 500...
View Clutch Components Products
Clutch Kits - Multi
Multi disc clutch kits for high torque manual transmission builds are stocked at Black Ops Auto Works. Shop twin disc and triple disc clutch systems, matched pressure plates, friction discs, release bearings, flywheel packages, alignment tools, and hardware for domestic, import, muscle car, and track applications. Every product is filterable by year, make, model, trim, engine, and drivetrain. The collection includes high-capacity systems for LS, LT, Coyote, HEMI, VQ, RB, K-series, Subaru, BMW, Honda, Mazda, Nissan, and Ford platforms. What This Multi Disc Clutch Collection Covers Twin and triple disc systems Multi disc clutch kits use two or three smaller friction discs to increase torque capacity without requiring an extremely heavy pedal or oversized single disc. They are common in supercharged, turbocharged, drag, road race, and high horsepower street builds. Twin Disc vs Triple Disc Clutches Torque capacity and drivability Twin disc kits balance strong holding power with man...
View Clutch Kits - Multi Products
Drivetrain
Drivetrain parts for high-horsepower Mopar, truck, Jeep, and import platforms are stocked at Black Ops Auto Works. Shop differentials, axles, driveshafts, clutch kits, flywheels, flexplates, shifters, transmission components, ring and pinion gears, differential braces, and driveline hardware for Hellcat, Trackhawk, TRX, HEMI, LS, LT, Coyote, and turbocharged import platforms. Every drivetrain part is filterable by vehicle platform, drivetrain layout, transmission type, and power level so the correct part ships the first time. Black Ops Auto Works carries 4,765 drivetrain SKUs across differentials, axles, clutches, and transmission hardware. What This Category Covers The drivetrain transfers power from the engine to the wheels and includes the transmission, clutch, driveshafts, axles, differentials, ring and pinion gears, wheel hubs, wheel bearings, U-joints, shifters, mounts, and bushings. Upgrading these components improves power delivery, durability, and reliability under incr...
View Drivetrain Products


