The ACT SB5-HDSS pairs ACT's Heavy Duty pressure plate with its Performance Street sprung disc for a stronger-holding, street-friendly clutch kit across turbocharged Subaru WRX, Forester XT, Legacy, and Outback XT applications, plus the badge-engineered Saab 9-2X Aero. The Heavy Duty pressure plate uses ACT's exclusive diaphragm design to increase clamp load and reduce deflection, with every diaphragm going through a four-stage heat-treating process. The Performance Street disc uses premium organic friction material with high copper content for improved heat transfer and steel-backed lining for durability, with reduced marcel for faster, crisper shifts.
Specifications:
- Torque Capacity: 420 ft-lb (32% over OE)
- Product Weight: 14.5 lbs
- Disc Diameter: 9 in (228 mm)
- Pressure Plate: Heavy Duty, four-stage heat-treated diaphragm
- Disc Material: Organic, high-copper content, steel-backed lining
- Disc Style: Sprung hub
- Pedal Feel: Light to moderate effort, smooth positive engagement, OE to mild gear rattle
- Recommended Use: Street and race use
- Part Number: SB5-HDSS
Vehicle Applications:
- 2006 Saab 9-2X Aero
- 2006 Subaru Baja Turbo
- 2008 Subaru Forester 2.5 XT
- 2008 Subaru Forester Sports 2.5 XT
- 2006 Subaru Forester XT Limited
- 2007 Subaru Forester XT Limited
- 2008 Subaru Forester XT Limited
- 2006 Subaru Impreza WRX
- 2007 Subaru Impreza WRX
- 2008 Subaru Impreza WRX
- 2009 Subaru Impreza WRX
- 2010 Subaru Impreza WRX
- 2011 Subaru Impreza WRX
- 2012 Subaru Impreza WRX
- 2013 Subaru Impreza WRX
- 2014 Subaru Impreza WRX
- 2009 Subaru Impreza WRX Premium
- 2010 Subaru Impreza WRX Premium
- 2011 Subaru Impreza WRX Premium
- 2012 Subaru Impreza WRX Premium
- 2013 Subaru Impreza WRX Premium
- 2014 Subaru Impreza WRX Premium
- 2006 Subaru Impreza WRX TR
- 2007 Subaru Impreza WRX TR
- 2010 Subaru Legacy 2.5GT
- 2011 Subaru Legacy 2.5GT
- 2012 Subaru Legacy 2.5GT
- 2006 Subaru Legacy GT spec.B
- 2007 Subaru Legacy GT spec.B
- 2008 Subaru Legacy GT spec.B
- 2009 Subaru Legacy GT spec.B
- 2008 Subaru Outback 2.5 XT
- 2005 Subaru Outback XT
- 2006 Subaru Outback XT
- 2005 Subaru Outback XT Limited
- 2006 Subaru Outback XT Limited
- 2007 Subaru Outback XT Limited
- 2008 Subaru Outback XT Limited
- 2009 Subaru Outback XT Limited
- 2018 Subaru WRX 6 Man
- 2013 Subaru WRX
- 2014 Subaru WRX
- 2015 Subaru WRX
- 2016 Subaru WRX
- 2017 Subaru WRX
- 2018 Subaru WRX
- 2013 Subaru WRX Limited
- 2014 Subaru WRX Limited
- 2015 Subaru WRX Limited
- 2016 Subaru WRX Limited
- 2017 Subaru WRX Limited
- 2018 Subaru WRX Limited
- 2015 Subaru WRX Premium
- 2016 Subaru WRX Premium
- 2017 Subaru WRX Premium
- 2018 Subaru WRX Premium
- 2017 Subaru WRX Sport
- 2018 Subaru WRX Sport
- 2017 Subaru WRX Sport-tech
- 2018 Subaru WRX Sport-tech
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 torque capacity does the SB5-HDSS handle?
The kit is rated for 420 ft-lb of torque capacity, a 32% increase over the factory clutch.
Does the SB5-HDSS fit the Saab 9-2X?
Yes. The Saab 9-2X Aero was built on the same platform as the Subaru Impreza WRX and shares its clutch fitment, so the SB5-HDSS covers the 2006 9-2X Aero.
What Subaru models does the SB5-HDSS cover?
It spans turbocharged WRX, Forester XT, Legacy 2.5GT/GT spec.B, and Outback XT applications from roughly 2005-2018. See the Vehicle Applications list above to confirm the exact year and trim.
Is this kit suitable for daily driving?
Yes. It is engineered for light to moderate pedal effort with smooth, positive engagement and only OE to mild gear rattle, and is recommended for both street and race use.
