The NGK BKR6EK plugs are the ones to get. Strange though. Someone on my local BMW CCA forum recently had issues with skipping, and it wound up being a bad CPS. It's worth thinking about, anyway.
1998 BMW 328is
1966 Pontiac GTO
2007 Subaru Impreza 2.5i 5-door
View my photos: Caught in the Wild
Last edited by ZeGerman; 11-28-2010 at 10:24 PM.