The ACT SB12-HDSS kit features ACT's most popular Heavy Duty pressure plate and most popular street disc for the Subaru WRX (excluding STI) and related EJ25/FA20-turbo Subaru platform vehicles. ACT Heavy Duty pressure plates use an exclusive diaphragm design to increase clamp load, reduce deflection, and maximize clutch life, with every diaphragm heat-treated in a four-stage process for unparalleled performance. Precision cover stampings provide rigidity and consistency. ACT's Performance Street discs feature premium organic materials with high copper content for better heat transfer and a steel-backed lining for greater burst strength and durability, with reduced marcel for faster shift action.
WarrantyInstallation Instructions
Specifications:
- Kit Contents: Heavy Duty pressure plate + Performance Street sprung disc
- Part Number: SB12-HDSS
"Excellence in Performance", backed by the best one-year warranty in the industry.
Vehicle Applications:
| Year | Make | Model | Trim |
|---|---|---|---|
| 2006 | Subaru | Baja | Turbo |
| 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 |
| 2006 | Subaru | Impreza | WRX Limited |
| 2007 | Subaru | Impreza | WRX Limited |
| 2010 | Subaru | Impreza | WRX Limited |
| 2011 | Subaru | Impreza | WRX Limited |
| 2012 | Subaru | Impreza | WRX Limited |
| 2013 | Subaru | Impreza | WRX Limited |
| 2014 | Subaru | Impreza | WRX Limited |
| 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 |
| 2005 | Subaru | Legacy | GT |
| 2006 | Subaru | Legacy | GT |
| 2005 | Subaru | Legacy | GT Limited |
| 2007 | Subaru | Legacy | GT Limited |
| 2008 | Subaru | Legacy | GT Limited |
| 2009 | Subaru | Legacy | GT Limited |
| 2006 | Subaru | Legacy | GT spec.B |
| 2007 | Subaru | Legacy | GT spec.B |
| 2008 | Subaru | Legacy | GT spec.B |
| 2009 | Subaru | Legacy | GT spec.B |
| 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 |
| 2015 | Subaru | WRX | Base |
| 2016 | Subaru | WRX | Base |
| 2017 | Subaru | WRX | Base |
| 2018 | Subaru | WRX | Base |
| 2019 | Subaru | WRX | Base |
| 2020 | Subaru | WRX | Base |
| 2021 | Subaru | WRX | Base |
| 2022 | Subaru | WRX | Base |
| 2023 | Subaru | WRX | Base |
| 2024 | Subaru | WRX | Base |
| 2015 | Subaru | WRX | Limited |
| 2016 | Subaru | WRX | Limited |
| 2017 | Subaru | WRX | Limited |
| 2018 | Subaru | WRX | Limited |
| 2019 | Subaru | WRX | Limited |
| 2020 | Subaru | WRX | Limited |
| 2021 | Subaru | WRX | Limited |
| 2022 | Subaru | WRX | Limited |
| 2023 | Subaru | WRX | Limited |
| 2024 | Subaru | WRX | Limited |
| 2025 | Subaru | WRX | Limited |
| 2015 | Subaru | WRX | Premium |
| 2016 | Subaru | WRX | Premium |
| 2017 | Subaru | WRX | Premium |
| 2018 | Subaru | WRX | Premium |
| 2019 | Subaru | WRX | Premium |
| 2020 | Subaru | WRX | Premium |
| 2021 | Subaru | WRX | Premium |
| 2022 | Subaru | WRX | Premium |
| 2023 | Subaru | WRX | Premium |
| 2024 | Subaru | WRX | Premium |
| 2025 | Subaru | WRX | Premium |
| 2024 | Subaru | WRX | TR |
| 2025 | Subaru | WRX | TS |
Frequently Asked Questions
What vehicles does the ACT SB12-HDSS clutch kit fit?
The SB12-HDSS fits the Subaru WRX platform (excluding STI) along with related turbo Subaru models including the Baja Turbo, Forester XT, Impreza WRX, Legacy GT/2.5GT, and Outback XT across model years 2005-2025. See the Vehicle Applications table above for exact year, model, and trim coverage.
What does the SB12-HDSS kit include?
It includes ACT's Heavy Duty pressure plate and Performance Street sprung disc, ACT's most popular Heavy Duty and street disc pairing.
Does the SB12-HDSS kit come with a warranty and install guide?
Yes. ACT backs the kit with a one-year warranty, and printed Warranty and Installation Instructions documents are linked above.
Is there a California Prop 65 warning for this product?
No Prop 65 language is listed in the manufacturer data for this part number.