I’ve run that line on both an fftec bottom mount and my current motiv kit via a catch can and the catch can is still as dry as the day I installed it. I’m running a -20 hose too to prevent restriction.Speaking of the PCV system I would still like to know of a good vac source as I have none now that I am single turbo. My previous source was the rear inlet pipe. I don't think a line from the ST filter all the way back is going to pull any vacuum worth talking about...
I would also like to know if anyone has managed to set up a good vacuum pump and vacuum break on the N54 or other vehicles.