ACT HD-M/Race Sprung 4 Pad Kit - 02-05 Subaru WRX, 08-09 Legacy GT Spec B, 04-05 Forester XT - 230mm - SB9-HDG4 T3 The OEM pitch stop is

The OEM pitch stop is a poor excuse for a performance part

Extended calibration range ensures each sensor can be calibrated exactly within the OEM range

AI4-XTG4 kit features an Xtreme pressure plate for the most demanding driver

Every gear-head has struggled to remove a stuck oil cap at some point

Subaru WRX STI

ACT HD-M/Race Sprung 4 Pad Kit - 02-05 Subaru WRX, 08-09 Legacy GT Spec B, 04-05 Forester XT - 230mm - SB9-HDG4 T3 The OEM pitch stop isSB9 HDG4 kit features ACT's most popular Heavy Duty pressure plate. ACT Heavy Duty pressure plates use exclusive diaphragm design to increase clamp load, reduce deflection and maximize clutch life. All diaphragms endure a four stage, heat treating process for unparalleled performance. ACT pressure plates have precision cover stampings to provide rigidity and consistency. ACTs 4 pad spring centered race disc features a spring center construction to