bimmerparts.com carries an imitation, bmpd carries OEM. I suggest OEM. I have an imitation, and while the look is identical, the fit is slightly off and mine wiggles if you press on it.
<span style='color:gray'><span style='font-family:Courier'>1995 e36 3 Series RIP
1999 e46 3 Series BURN IN HELL
2000 MR-S Roadster= Current</span></span>