ACT Subaru WRX STI Mod Twin HD Street Kit Sprung Clutch Kit — Fits 2004-2021 Subaru WRX STI

Save 19%
SKU: ACTT1S-S05
No reviews

About ACT ACT engineers high-quality automotive parts and accessories trusted ...Read More

Price:
Sale price$1,977.56 Regular price$2,449.00
Add To Cart
×

Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About ACT

ACT engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full ACT lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

ACT Mod-Twin 225 HD Sprung Street Kit for Subaru WRX STI

Unleash the full potential of your Subaru WRX STI with the ACT Mod-Twin 225 HD Sprung Street Kit. Engineered for high-powered AWD street machines, this clutch kit delivers an exceptional blend of uncompromised pedal feel, outstanding durability, and precise engagement, all while handling a formidable 700 ft/lbs of torque. It features a dual-organic friction surface design paired with an ultra-durable spring-center Mono-Drive hub in a fully modular configuration, ensuring superior performance for demanding applications.

Engineered for Performance:

  • High Torque Handling: Capable of managing up to 700 ft/lbs of torque, ideal for tuned WRX STI models.
  • Consistent Pedal Feel: The diaphragm spring undergoes a specialized four-stage heat-treating process, providing a light and consistent pedal feel, even under aggressive use.
  • Durable Organic Friction: Steel-backed friction plates utilize premium organic materials for stable friction, excellent heat resistance, and extended clutch lifespan.
  • Driveline Longevity: Torque is efficiently transferred through the Mono-Drive sprung hub assembly, which helps protect the input shaft and minimizes driveline shock by absorbing torsional vibrations.
  • Modular Construction: Facilitates easier installation and maintenance.
  • Precision Balanced: Includes a CNC-machined and dynamically balanced component for smooth, reliable operation.

This ACT clutch kit is the perfect upgrade for Subaru WRX STI enthusiasts seeking a reliable and high-performing clutch solution that can handle significant power increases while maintaining excellent street manners. Experience enhanced power transfer and confidence with every shift.

Upgrade your Subaru WRX STI with ACT performance parts from GGCRACING.

Vehicle Fitment

Years Make Model Trim
2004-2014 Subaru Impreza WRX STI
2007 Subaru Impreza WRX STI Limited
2010 Subaru Impreza WRX STI Special Edition
2011-2014 Subaru Impreza WRX STI Limited
2015 Subaru WRX STI Launch Edition
2015-2021 Subaru WRX STI Base
2016 Subaru WRX STI Series.HyperBlue
2018 Subaru WRX STI Type RA
2019 Subaru WRX STI S209

Product Details

Product Description
Part Numbers
Sizing & Fit

About ACT

ACT engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full ACT lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

ACT Mod-Twin 225 HD Sprung Street Kit for Subaru WRX STI

Unleash the full potential of your Subaru WRX STI with the ACT Mod-Twin 225 HD Sprung Street Kit. Engineered for high-powered AWD street machines, this clutch kit delivers an exceptional blend of uncompromised pedal feel, outstanding durability, and precise engagement, all while handling a formidable 700 ft/lbs of torque. It features a dual-organic friction surface design paired with an ultra-durable spring-center Mono-Drive hub in a fully modular configuration, ensuring superior performance for demanding applications.

Engineered for Performance:

  • High Torque Handling: Capable of managing up to 700 ft/lbs of torque, ideal for tuned WRX STI models.
  • Consistent Pedal Feel: The diaphragm spring undergoes a specialized four-stage heat-treating process, providing a light and consistent pedal feel, even under aggressive use.
  • Durable Organic Friction: Steel-backed friction plates utilize premium organic materials for stable friction, excellent heat resistance, and extended clutch lifespan.
  • Driveline Longevity: Torque is efficiently transferred through the Mono-Drive sprung hub assembly, which helps protect the input shaft and minimizes driveline shock by absorbing torsional vibrations.
  • Modular Construction: Facilitates easier installation and maintenance.
  • Precision Balanced: Includes a CNC-machined and dynamically balanced component for smooth, reliable operation.

This ACT clutch kit is the perfect upgrade for Subaru WRX STI enthusiasts seeking a reliable and high-performing clutch solution that can handle significant power increases while maintaining excellent street manners. Experience enhanced power transfer and confidence with every shift.

Upgrade your Subaru WRX STI with ACT performance parts from GGCRACING.

Vehicle Fitment

Years Make Model Trim
2004-2014 Subaru Impreza WRX STI
2007 Subaru Impreza WRX STI Limited
2010 Subaru Impreza WRX STI Special Edition
2011-2014 Subaru Impreza WRX STI Limited
2015 Subaru WRX STI Launch Edition
2015-2021 Subaru WRX STI Base
2016 Subaru WRX STI Series.HyperBlue
2018 Subaru WRX STI Type RA
2019 Subaru WRX STI S209

Product Details

Product Description

About ACT

ACT engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full ACT lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

ACT Mod-Twin 225 HD Sprung Street Kit for Subaru WRX STI

Unleash the full potential of your Subaru WRX STI with the ACT Mod-Twin 225 HD Sprung Street Kit. Engineered for high-powered AWD street machines, this clutch kit delivers an exceptional blend of uncompromised pedal feel, outstanding durability, and precise engagement, all while handling a formidable 700 ft/lbs of torque. It features a dual-organic friction surface design paired with an ultra-durable spring-center Mono-Drive hub in a fully modular configuration, ensuring superior performance for demanding applications.

Engineered for Performance:

  • High Torque Handling: Capable of managing up to 700 ft/lbs of torque, ideal for tuned WRX STI models.
  • Consistent Pedal Feel: The diaphragm spring undergoes a specialized four-stage heat-treating process, providing a light and consistent pedal feel, even under aggressive use.
  • Durable Organic Friction: Steel-backed friction plates utilize premium organic materials for stable friction, excellent heat resistance, and extended clutch lifespan.
  • Driveline Longevity: Torque is efficiently transferred through the Mono-Drive sprung hub assembly, which helps protect the input shaft and minimizes driveline shock by absorbing torsional vibrations.
  • Modular Construction: Facilitates easier installation and maintenance.
  • Precision Balanced: Includes a CNC-machined and dynamically balanced component for smooth, reliable operation.

This ACT clutch kit is the perfect upgrade for Subaru WRX STI enthusiasts seeking a reliable and high-performing clutch solution that can handle significant power increases while maintaining excellent street manners. Experience enhanced power transfer and confidence with every shift.

Upgrade your Subaru WRX STI with ACT performance parts from GGCRACING.

Vehicle Fitment

Years Make Model Trim
2004-2014 Subaru Impreza WRX STI
2007 Subaru Impreza WRX STI Limited
2010 Subaru Impreza WRX STI Special Edition
2011-2014 Subaru Impreza WRX STI Limited
2015 Subaru WRX STI Launch Edition
2015-2021 Subaru WRX STI Base
2016 Subaru WRX STI Series.HyperBlue
2018 Subaru WRX STI Type RA
2019 Subaru WRX STI S209

DRIVERS Also Bought

Recently viewed