ACT XT-M/Race Rigid 4 Pad Kit - 02-05 Subaru WRX, 08-09 Legacy GT Spec B, 04-05 Forester XT - 230mm - SB9-XTR4 74.5mm MB1-SPR6 kit features a Sport

MB1-SPR6 kit features a Sport pressure plate for a nice upgrade

TC2-SPSS kit features a Sport pressure plate for a nice upgrade

FM1-HDSS kit features ACT's most popular Heavy Duty pressure plate and most popular street disc

trouble-free service

Also some supercharger do not have a 1″ lip to clamp it too

ACT XT-M/Race Rigid 4 Pad Kit - 02-05 Subaru WRX, 08-09 Legacy GT Spec B, 04-05 Forester XT - 230mm - SB9-XTR4 74.5mm MB1-SPR6 kit features a SportSB9 XTR4 kit features an Xtreme pressure plate for the most demanding driver. ACT Xtreme 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 rigid race discs are made with high quality, ceramic friction