Stage 1 Clutch Kit (1OS) for Subaru WRX STI 2004-2021 2.5L DOHC (EJ257) Turbo AWD Includes ACT Monoloc

Action Clutch Stage 1 (1OS) Kits have been designed for vehicles ranging from stock to basic bolt-on cars. It utilizes a reinforced Steel Backed Copper Kevlar Organic friction material, coupled with a single diaphragm heavy-duty pressure plate to give you smooth and reliable engagement without sacrificing the OEM-like pedal feel.

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.

70% INCREASED HOLDING CAPACITY OVER FACTORY KIT*
RECOMMENDED FOR HEAVY-DUTY STREET USE AND MILD TRACK-USE

Break-in Requirements
500 street miles / Keep RPM’s under 4500, no more than half-throttle, no boost (if applicable).
Proper break-in is required in order to retain product warranty, ensure longevity and holding capacity.

*Increase in holding capacity is rated in Crank Torque, not Wheel Torque

SFI Spec 1.1 Replacement Flywheels and Clutch Assemblies