Chris if I get your valve cover I really shouldn't have to plug head ports right If I had rb external low side? I know it's supposed to be simple but with my luck I'd rather not I just want go gc lite I think and never say pcv again after the install so whatever else you tell me to do or buy I will.
Does the VTT valve cover have a way of blocking off the head ports completely without tapping them? Or are you just coming to that conclusion since the reason we plug head ports is because of potential VC failure causing leaks into them while running external? Cause the second one sounds like a reasonable assumption, but I never thought about that.
If so then shit, I'll have to move it up my list. I was under the impression the VTT cover was mostly beneficial because you can completely customize your system to the point where you either go full 100% VTA or can retain PCV/Vacuum while still ensuring you never have to worry about positive pressure.
I think people are more afraid of the PCV system than they should be TBH. Rob's whole thing is maintaining factory-like vacuum, but that's not always necessary especially when you aren't running factory-like boost or power levels. People have been happily running 100% VTA systems in all sorts of cars for several decades without issue. I agree with Rob on keeping pcv probably being best for most street driven cars, but if you're the kind of person who can handle a full careless free-flow exhaust and think it smells good or that gas etc smells good (like your typical gear heads do), you'd probably be okay with full VTA too honestly. Yes it smells worse than gas, but it's not going to make you puke every time you come to a stoplight like some people say. We all know certain types of BMW owners can be more of ninnys than other platforms lol, which is why some complain about VTA.
At the end of the day, if your crankcase isn't under positive pressure (easy to avoid on the N54 nowadays), your seals aren't howling and you don't have a straight-up vacuum leak then your PCV system is probably okay and has probably been run by 10k people before you honestly.