ACT 4 Pad Sprung Race Disc - 4228222 Wideband Air/ Fuel Controller 6214125 is a 6-pad spring-centered

6214125 is a 6-pad spring-centered race discs made with high quality ceramic friction materials

MB2-HDR6 kit features ACT's most popular Heavy Duty pressure plate

4220112 is a 4-pad spring-centered race disc made with high quality

the slot on #27 would be on left

HC5-XXG6 kit features a MaXX pressure plate for the serious enthusiast

ACT 4 Pad Sprung Race Disc - 4228222 Wideband Air/ Fuel Controller 6214125 is a 6-pad spring-centered4228222 is a 4 pad spring centered race disc made with high quality, ceramic friction materials. The engagement is harsher, but shifting is faster. The heavy duty torsional dampening springs are stronger, in most cases, than standard springs and are provided in the best sizes and spring rates to suit the application. The race disc features a heat treated spring steel drive plate and is well suited for the smaller disc sizes in smaller engines.