ACT HD/Race Sprung 4 Pad Clutch Kit Subaru WRX 2006-2026 | SB12-HDG4 STI_2008-2014 Designed for Competition Applications

Designed for Competition Applications

Some models are designed to extend over the doorsill area—this is an intentional design feature that provides added protection and is not a fitment issue

PTFE-Lined FK Bearings

4-Piece System LayoutIncludes Mid Pipe #1

Our stock Evolution 10 gained 10 wheel horsepower over the stock core just by bolting it on

ACT HD/Race Sprung 4 Pad Clutch Kit Subaru WRX 2006-2026 | SB12-HDG4 STI_2008-2014 Designed for Competition ApplicationsProduct Fitment: 2006 2026 Subaru WRX The ACT Heavy Duty Race Sprung 4 Pad Clutch Kit is engineered for high stress racing and performance street builds, providing a balance of durability, torque capacity, and smooth engagement. Built with a heavy duty sprung hub friction disc and performance pressure plate, this kit delivers confident clutch engagement while reducing shock loads and drivetrain vibration a key advantage over rigid clutch designs.