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ACT Subaru 04-20 WRX STI Mod Twin XT Street Kit Sprung Mono-Drive Hub Torque Capacity 875ft/lbs | T2S-S05
Mod-Twin 225 HD Sprung Street Kit is designed for high powered AWD street cars. It unites uncompromised pedal feel, durability, engagement quality with very high torque capacity by combining twice the organic friction surfaces with an ultra-durable spring center Mono-Drive hub in a completely modular design. Each diaphragm spring endures an exclusive four-stage heat treating process providing a consistent light pedal.
Use ACT manufacturer part number T2S-S05 to confirm the exact drivetrain component and application.
Key Features
- It unites uncompromised pedal feel, durability, engagement quality with very high torque capacity by combining twice the organic friction surfaces with an ultra-durable spring center Mono-Drive hub in a completely modular design.
- Steel-backed Friction Plates with high quality organic friction materials deliver stable friction coefficient, good heat capacity and long clutch life.
- This kit includes a CNC-machined and dynamically balanced flywheel, pressure plate cover, diaphragm spring, face, puck-style ceramic friction plates, sprung Mono-Drive hub assembly, floater, patented Monoloc Collar, release bearing, alignment tool and pilot bearing (if needed).
- Mod-Twin 225 HD Sprung Street Kit is designed for high powered AWD street cars.
- Each diaphragm spring endures an exclusive four-stage heat treating process providing a consistent light pedal feel.
- These Friction Plates uniformly transfer torque to the Mono-Drive sprung hub assembly which extends input shaft life and reduces driveline shock from torsional vibration.
Fitment
| Years | Make | Model | Application |
|---|---|---|---|
| 2004-2014 | Subaru | Impreza | WRX STI |
| 2007 | Subaru | Impreza | WRX STI Limited |
| 2011-2014 | Subaru | Impreza | WRX STI Limited |
| 2010 | Subaru | Impreza | WRX STI Special Edition |
| 2015-2021 | Subaru | WRX STI | Base |
| 2015 | Subaru | WRX STI | Launch Edition |
| 2016 | Subaru | WRX STI | Series.HyperBlue |
Vehicle fitment is a starting point. Confirm every drivetrain specification and the exact ACT part number before installation.
Confirm T2S-S05 against the complete ACT application before ordering.
Specifications
| Brand | ACT |
|---|---|
| Manufacturer Part Number | |
| Product Type | Clutch Kits - Multi |
| Condition | New |
Manufacturer Part Number: T2S-S05
What’s Included
The exact ACT clutch kits - multi and quantity identified by the product title and MPN. Bearings, alignment tools, flywheel bolts, pressure-plate bolts, hydraulic parts, and related hardware are included only when specifically stated.
About ACT
ACT develops application-specific clutch kits, friction discs, pressure plates, flywheels, bearings, and supporting drivetrain components for street and motorsport use. Black Ops Auto Works organizes every ACT listing by exact MPN and verified vehicle application.
The T2S-S05 should be selected as part of a complete matched ACT drivetrain system.
Related Parts
- ACT EVO 8/9 5-Spd Only Mod Twin HD Race Kit Sprung Hub Torque Cap 895ft/lbs Not For Street Use
- ACT 04-20 WRX STI Mod Twin HD Race Kit Sprung Mono-Drive Hub Torque Cap 895ft/lbs Not For Street Use
- Shop the complete ACT clutch and drivetrain collection
Frequently Asked Questions
What is the T2S-S05?
It is the ACT multi-disc clutch kit described in this listing for the stated application and use.
How do I confirm fitment?
Match the complete year, make, model, engine, transmission and every qualifier shown in the title and fitment section.
Is this intended for street use?
Use suitability depends on the specific disc, pressure plate, flywheel and clutch configuration shown in the listing.
Can I mix clutch components from different kits?
Do not assume components are interchangeable. Verify spline, diameter, step height, release system and the complete matched ACT assembly.
Does installation require break-in?
Follow the current ACT instructions for the exact clutch and disc type. Street friction systems commonly require a controlled break-in period; race products can differ.
Should the flywheel be inspected or resurfaced?
Yes. Inspect the mating surface and use only a compatible flywheel prepared to ACT specifications. Replace damaged or out-of-spec components.
Is professional installation recommended?
Yes. Clutch and flywheel work requires correct transmission removal, fastener torque, alignment, release-system setup and safety procedures.
Can Black Ops Auto Works help verify the application?
Yes. Provide the vehicle, engine, transmission, existing flywheel, power level and intended street or competition use before ordering.
Installation Instructions
- Confirm ACT part and the complete engine, transmission, flywheel, spline, and release-system application before disassembly.
- Inspect every component and compare the new part with the removed assembly before modifying or installing anything.
- Inspect the flywheel or friction surface, pilot support, release bearing, fork, pivot, hydraulic system, seals, and mounting hardware.
- Clean friction surfaces correctly and keep oil, grease, and fingerprints away from the clutch disc and mating faces.
- Use the vehicle service procedure and current ACT instructions for alignment, fasteners, torque sequence, release travel, and clearances.
- Verify smooth release, correct free play, clean gear engagement, and leak-free operation before road use.
- Complete the manufacturer-specified break-in procedure before launches, dyno pulls, racing, towing, or full-torque operation.
California Proposition 65: WARNING: This product can expose you to chemicals known to the State of California to cause cancer and reproductive harm.
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