ACT 6 Pad Sprung Race Disc - 6266307 BMW Z3 4214004 is a 4-pad rigid

4214004 is a 4-pad rigid race disc made with high quality

AI3-HDR4 kit features ACT's most popular Heavy Duty pressure plate

more fuel is needed and the stock fuel system is not up to par

TC4-XTG4 kit features an Xtreme pressure plate for the most demanding driver

ACT 6 Pad Sprung Race Disc - 6266307 BMW Z3 4214004 is a 4-pad rigid6266307 is a 6 pad spring centered race discs 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 6 pad, spring centered disc is recommended for larger clutch sizes to absorb more heat and for smoother engagement.