[Checkcaptain]

If someone is looking for the OEM GT4 ones.
I do not need mine anymore and would sell them:

http://imageshack.us/g/94/bild003dg.jpg/

They were partly clued, so the remains just have to be removed.

Originally Posted by erhanh

Only option I know is the OEM BMW GT4 ducts, which are carbon fiber, and very expensive ($600).

http://www.turnermotorsport.com/p-21...otorsport.aspx

Other than that, recently I saw this lip that has duct openings: http://www.m3post.com/forums/showthread.php?t=545016