The ACT SB11-XTG6 XT/Race Sprung 6-Pad Clutch Kit for a Subaru WRX, Legacy GT, Outback XT, Forester XT, and Baja Turbo provides a 240 mm conversion using the included ACT XACT Streetlite flywheel and pairs an Xtreme pressure plate with a spring-centered 6-pad ceramic disc for high horsepower street or race use.
The system increases clamp load via ACT’s diaphragm design, is dynamically balanced for smooth high-RPM use, and is engineered for aggressive, fast shifts with proper torsional damping from the sprung hub.
This is a conversion that replaces 230 mm OE applications on supported Subarus; the included ACT flywheel must be installed for correct stack height and compatibility.
ACT SB11-XTG6 - Features
- Xtreme pressure plate with increased clamp load to improve holding power under heat and RPM.
- Spring-centered 6-pad ceramic race disc for faster shifts and high heat tolerance in demanding use.
- 240 mm (9.4 in) disc diameter conversion for greater thermal capacity versus 230 mm OE on applicable models.
- Engine/crank torque capacity rated at 681 ft‑lb, providing substantial headroom for tuned turbo setups.
- Includes ACT XACT Streetlite flywheel; flywheel is required as part of the conversion.
- 100% clamp‑load tested and dynamically balanced for consistent performance at high RPM.
ACT SB11-XTG6 - Fitment
- 2006–2014 Subaru Impreza WRX - AWD (manual)
- 2015–2021 Subaru WRX - AWD (manual)
- 2005–2012 Subaru Legacy GT - AWD (manual)
- 2005–2009 Subaru Outback XT - AWD (manual)
- 2006–2008 Subaru Forester XT - AWD (manual)
- 2006 Subaru Baja Turbo - AWD (manual)
Compatibility Notes
- Conversion kit: replaces original 230 mm clutch on applicable vehicles; the included ACT flywheel must be used.
- Subaru incorporated 240 mm clutch components mid‑2018 (starting with VIN J*806877); ACT kits/flywheels in this family are not compatible with the revised OEM components.
- Not for STI applications (different clutch family/release mechanism).
Frequently Asked Questions
How will pedal feel and engagement compare to stock?
Expect moderate to heavy pedal effort with aggressive, race‑oriented engagement; some OE‑to‑mild gear rattle may be present.
Do I have to install the included flywheel?
Yes. This is a 240 mm conversion kit and requires the included ACT XACT Streetlite flywheel for correct stack height and system geometry.
What torque can this kit support?
ACT specifies 681 ft‑lb (engine/crank) torque capacity for SB11‑XTG6; actual results vary with tuning, tires, gearing, and use.
Is it suitable for daily driving?
It is optimized for high horsepower street or race use and will be firmer and more abrupt than OE.
Are bearings and an alignment tool included?
Yes. The package includes release bearing, pilot bearing, and an alignment tool along with the disc, pressure plate, and flywheel.
Install Notes
- Conversion kit: must use the included ACT flywheel; do not mix with Subaru’s mid‑2018+ revised 240 mm OEM components.
- Pressure plate bolts included (M8‑1.25 × 16 mm) per ACT application notes.
- Verify 24‑spline, 1.0 in input shaft; follow ACT instructions and torque specs per service manual.
Package Contents
- ACT XACT Streetlite flywheel (600890)
- ACT Xtreme pressure plate (SB020X)
- ACT 6‑pad sprung race disc (6240518)
- Release bearing (RB846) and pilot bearing (PB1004)
- Alignment tool (AT90)
Warranty
Covered by ACT’s 12‑month limited manufacturer warranty; terms and exclusions per ACT policy.
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