The ACT SB9-XTSS Extreme Performance Street Sprung Clutch Kit pairs an Xtreme pressure plate with a Performance street organic disc for demanding street and track driving. The Xtreme pressure plate's diaphragm design increases clamp load and reduces deflection to extend clutch life, and every diaphragm undergoes ACT's four-stage heat-treating process. Precision cover stampings add rigidity and consistency. The included Performance street disc uses premium organic friction material with higher copper content for improved heat transfer and steel-backed lining for greater burst strength, with a reduced marcel for faster shift action. The kit also includes ACT's Monoloc, a one-piece, direct replacement for the standard two-piece wedge collar and wire ring found in pull-type clutches; its hardened chrome-moly construction provides uniform loading on the bearing and pressure plate for consistent alignment regardless of driver input or vehicle modifications.
WarrantyInstallation Instructions
Specifications:
- Torque Capacity: 511 ft-lb
- Pressure Plate: Xtreme, four-stage heat-treated diaphragm
- Disc Material: Organic, reduced marcel for faster shift action
- Retaining Ring: ACT Monoloc, one-piece hardened chrome-moly (included)
- Recommended Use: Street and race use
- Part Number: SB9-XTSS
Vehicle Applications:
- 1991 Subaru Legacy Sport
- 1992 Subaru Legacy Sport
- 1993 Subaru Legacy Sport
- 1994 Subaru Legacy Sport
- 2002 Subaru Impreza WRX
- 2003 Subaru Impreza WRX
- 2004 Subaru Baja Turbo
- 2004 Subaru Forester XT
- 2004 Subaru Impreza WRX
- 2005 Subaru Baja Turbo
- 2005 Subaru Forester XT
- 2005 Subaru Forester XT Premium
- 2005 Subaru Impreza WRX
- 2007 Subaru Legacy GT spec.B
- 2008 Subaru Legacy GT spec.B
- 2009 Subaru Legacy GT spec.B
Warning: This product can expose you to chemicals including carbon black, glass wool fibers, or silica (in clutch discs), chromium and nickel, which are known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov
FAQ
What does the ACT Monoloc included in this kit do?
Monoloc is a one-piece, direct replacement for the standard two-piece wedge collar and wire ring used in pull-type clutches. Its hardened chrome-moly construction provides uniform loading on the bearing and pressure plate for consistent alignment, regardless of driver input or vehicle modifications.
What is the torque capacity of the SB9-XTSS kit?
511 ft-lb.
Is this kit suited for daily street driving or track use?
Both. ACT rates it for street and race use.
Does this kit fit the 2002-2005 Impreza WRX?
Yes, the SB9-XTSS covers the 2002-2005 Impreza WRX along with 2004-2005 Forester XT, 2004-2005 Baja Turbo, 2007-2009 Legacy GT spec.B, and 1991-1994 Legacy Sport. See the full Vehicle Applications list above to confirm the exact year and trim.