Originally Posted by mdosu
just making sure, only the kidney will fit the E90.
Front kidney grills fit all E9x M3's, and pre-facelift (up to 3/2010) E92/93 coupes and convertibles. Side gills fit all E92/93 coupe and convertible M3's only.
You just need to remove the cup part of the assembly to fit it to an E90