I also want to include a Oil Catch Can in my build, even if it's just for my own peace of mind. But I wish there was a more clean installation, like the other N55 catch can from Mishimoto:
https://www.mishimoto.com/bmw-n55-ca...y&utm_term=147
Including the research posts for further details:
https://www.mishimoto.com/engineerin...omplex-system/
https://www.mishimoto.com/engineerin...can-rd-part-2/
https://www.mishimoto.com/engineerin...ch-can-part-3/
That install pretty much looks stock. Like the piece was meant to be there from the start. Granted, I think our engine bay is a tighter working space, and it might be harder to fit, but I'm sure there must be a stock-like solution.
I'm going to continue to do some research, maybe ask around at the service center.