-9%
Click to zoom in
SKU: XKSU18521-3E | UPC: 9337467307382
XClutch 15-21 Subaru WRX STi Base 2.5L 7.25in Triple Solid Ceramic Clutch Kit
This Stage 5 XClutch kit features a 7.25-inch triple solid ceramic disc design for 2015-2021 Subaru WRX STI Base 2.5L models with 6-speed manual transmissions. It delivers strong torque holding up to 1200 ft-lbs for high horsepower setups while keeping a lightweight build for sharp throttle response. Perfect for track or street performance where power demands exceed stock limits.
Key Features
- Triple Solid Ceramic Discs: 7.25-inch diameter provides high torque capacity and heat resistance for demanding drives
- Includes Flywheel: Stepped flywheel matches OEM specs for direct bolt-on fit and balanced operation
- Release Pilot Bearings: High-quality bearings ensure smooth engagement and long service life
- Bolts and Alignment Tool: Complete hardware kit with pressure plate and flywheel bolts plus tool for precise installation
- Lightweight Design: Reduces rotational mass for quicker revs and better drivability in high power applications
Product Notes
- Designed for vehicles with sequential or high power transmissions check kit contents for your setup
- Break-in period recommended follow manufacturer guidelines for ceramic discs
- Special order item confirm stock before purchase
Installation Notes
- Professional installation recommended.
- Requires transmission removal access to bellhousing
- All necessary bolts and alignment tool provided compatible with OEM flywheel pattern
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2015-2021 | Subaru | WRX STI | Base 2.5L |
Why Choose XClutch?
- Race-proven components trusted in motorsport applications worldwide
- Engineered for precision fit and durability in performance environments
- Direct replacement design maintains stock pedal feel with added capacity
Frequently Asked Questions
-
Q: Does this fit 2015-2021 Subaru WRX STI with 2.5L engine?
A: Yes fits all 6-speed manual WRX STI Base 2.5L models from 2015-2021 VA chassis direct bolt-on -
Q: What material are the discs made from?
A: Solid ceramic discs offer superior heat dissipation and grip for high torque without glazing -
Q: What is the warranty on this clutch kit?
A: 12-month warranty against defects when installed by certified technician proper break-in required
Shipping & Handling
- Method: UPS Ground or FedEx
- Availability: In stock - ships same or next business day
- Packaging: Securely boxed 18 x 14 x 10 inches
- Weight: 42 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