ACT 4 Pad Sprung Race Disc Ceramic | Mini Cooper (02-08) (4214122)2002 2008 Mini Cooper 4 Pad Sprung Race Disc by ACT 4214122 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