ACT Subaru WRX HD/Race Rigid 4 Pad Clutch KitSB5 HDR4 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. ACT's 4 pad rigid race discs are made with high quality, ceramic friction

and follow factory TQ

Through the utilization of full threaded bodies and a twin tube damper to control the custom high spring rates

The adapter in this kit is machined from solid billet and offers two additional ports

For a stunning finish

the Slip-On Line can also be used with the optional stainless-steel link pipe set to further improve sound and performance

and for them we built an aggressive system designed for aggressive use

you can't do better than our VWR Sport Springs

Available in as machined finish

19 inch 233 mmLoad at Block Height: 827 lbs 3679 NWeight: 3

PRIMA kit and associated software have undergone changes to successfully and safely marry the S54's stock motor with the rigors of a boosted application

These are perfect to use with the stud conversion sets

as well as improved the end tank design to remove any OEM bottlenecks