I still am not a huge fan of the exhaust 'dump' persay, just makes things too complicated when the stock setup works.
In my situation, I keep the PCV valve stock (on the passenger side) and then run the rear block vent to the OEM oil/air seperator (just a baffled box), from that to the valve cover t, from the other side of the t to a catch can, and then back to the turbo inlet.
To date, I still don't get any measurable amounts of oil in my catch can, ever.
bad pic, messy bay, whatever lol