Read cool carbon reviews on e90post. Lot's of users didn't like them and switched out long before they were worn. Hawk HPS imo. They'll be my replacements.
2007 E90 335i, TiAg, 6AT, ZPP, ZSP, ZCW, 6FL, HD
Quaife lsd, ETS fmic, GIAC tune, Dinan intake/exhaust, KW/M3/Meyle susp, Apex Arc 8, Mich PSS