So those aren't oil drains. At first, just to see the effect, planning on collecting the oil and not hooking up a drain to the pan yet. On the 123 240D that's the donor car, the separator isn't in the air filter, but is a separate unit off to the side. Anybody else out there done this? For Peter, I have thought about swapping the entire intake to get away from the oil bath filter, but there's no venturi tube in there for the pnumatic governor in my I.P. plus all the linkage swap, so thats on hold.