Yes, OEM. I know IND carries them but you could also shop around at one of the dealers that sells parts at a discount on this forum...
Here is Tischer offering the parts... http://www.m3post.com/forums/showthread.php?t=611532
2011 Space Grey E90 M3, DCT, Comp. Pkg.
1997 Z3 2.8, Artic Silver, Tanin Red interior, MT
1974 2002tii, Inka, 5 sp manual