View Single Post
      11-26-2012, 11:49 PM   #4
clarence
Lieutenant Colonel
23
Rep
1,544
Posts

 
Drives: F30 328i M-Sport
Join Date: Mar 2006
Location: Hong Kong

iTrader: (0)

No u don't. HK-spec M-sport comes with 2NH as standard. 2NH discs are straight swap with M-performance discs.
In any case, if u swap them the only gain u'll get is better looks - u'll have no performance gain at all as the sizes are the same. Also those discs are not really drilled, only slotted & dimpled.