Action Clutch 04-21 Subaru WRX STI 2.5L (EJ257) Turbo AWD Stage 1 HD Clutch Kit (2OS)

Action Clutch's Stage 1 HD (2OS) Kit has been designed for vehicles ranging from stock to basic bolt-on cars. It utilizes our reinforced Steel Backed Copper Kevlar Organic friction material, coupled with a single diaphragm heavy-duty pressure plate with increased clamping force to give you smooth and reliable engagement and higher torque holding capacity. The pedal feel will be heavier than our Stage 1 (1OS) clutch kit by approximately 20%. At Action Clutch, safety is our top priority. We understand how catastrophic engine or transmission damage can be caused by springs popping out which is why we use our patented, fully enclosed spring retainers to keep your investment protected at all times. Every kit is quality checked by one of our experienced engineers (with over 60 years of collective experience) and signed off as safe before being released as a finished product. This gives you peace of mind knowing that your Action Clutch will perform consistently every time. 100% INCREASED HOLDING CAPACITY OVER FACTORY KIT RECOMMENDED FOR HEAVY-DUTY STREET USE AND MILD TRACK-USE Stage 1 HD Clutch Kit (2OS) for Subaru WRX STI 2004-2021 2.5L DOHC (EJ257) Turbo AWD

The Action Clutch ACR-1802-2OS Stage 1 HD clutch kit is engineered for 2004-2021 Subaru WRX STI models equipped with the 2.5L DOHC EJ257 turbocharged engine and all-wheel drive. Designed for stock vehicles and basic bolt-on applications, this kit provides dependable engagement, increased torque capacity, and consistent performance for demanding street driving and mild track use. It delivers approximately 100% greater holding capacity than the factory clutch kit while maintaining smooth, predictable operation.
The kit uses reinforced steel-backed copper Kevlar organic friction material paired with a single-diaphragm heavy-duty pressure plate. Increased clamping force improves torque retention under higher loads, while the organic friction compound helps preserve manageable engagement characteristics for street use. Pedal effort is approximately 20% higher than the Action Clutch Stage 1 1OS kit, offering a stronger pedal feel suited to drivers who need additional holding power without moving to an aggressive competition setup.
Safety and durability are built into the Action Clutch design. Patented, fully enclosed spring retainers help prevent springs from dislodging and protect the clutch assembly during operation. Each Action Clutch kit is quality checked by an experienced engineer before release, supporting reliable performance and consistent operation over time. The ACR-1802-2OS is a practical upgrade for Subaru WRX STI owners seeking heavy-duty street performance with mild track capability.

Features:

• Application: Fits 2004-2021 Subaru WRX STI models with the 2.5L DOHC EJ257 turbocharged engine and all-wheel drive

• Performance: Provides approximately 100% increased torque holding capacity over the factory clutch kit

• Friction Material: Uses reinforced steel-backed copper Kevlar organic material for smooth engagement and reliable durability

• Pressure Plate: Heavy-duty single-diaphragm design delivers increased clamping force for higher torque capacity

• Pedal Feel: Approximately 20% heavier than the Action Clutch Stage 1 1OS clutch kit

• Recommended Use: Suitable for heavy-duty street driving, stock vehicles, basic bolt-on applications, and mild track use

• Safety Design: Patented fully enclosed spring retainers help prevent spring dislodgement and protect the clutch assembly

• Quality Control: Each kit is inspected and approved by an experienced Action Clutch engineer before release

Fitment:
Subaru Impreza WRX STI 2004
Subaru Impreza WRX STI 2005
Subaru Impreza WRX STI 2006
Subaru Impreza WRX STI 2007
Subaru Impreza WRX STI 2008
Subaru Impreza WRX STI 2009
Subaru Impreza WRX STI 2010
Subaru Impreza WRX STI 2011
Subaru Impreza WRX STI 2012
Subaru Impreza WRX STI 2013
Subaru Impreza WRX STI 2014
Subaru WRX STI Base 2015
Subaru WRX STI Base 2016
Subaru WRX STI Base 2017
Subaru WRX STI Base 2018
Subaru WRX STI Base 2019
Subaru WRX STI Base 2020
Subaru WRX STI Base 2021
Subaru WRX STI Launch Edition 2015
Subaru WRX STI Limited 2015
Subaru WRX STI Limited 2016
Subaru WRX STI Limited 2017
Subaru WRX STI Limited 2018
Subaru WRX STI Limited 2019
Subaru WRX STI Limited 2020
Subaru WRX STI Limited 2021
Subaru WRX STI S209 2019
Subaru WRX STI Series.HyperBlue 2016
Subaru WRX STI Type RA 2018