This Is the last plug In I need to complete my conversion. I currently have a Greddy one but I'm holding of as from now to plug It In.

What are you running? Post your pics If you got any.

 

If I ever get around to pulling the vac rack I'm not going to bother with a catch can. Rotaries have less blow-by than piston engines, so there's not as much blow-by to catch.

Run two lines (one from the center plate and one from the oil filler neck) underneath the car and zip-tie them to something, leaving them open-vented.

 

That sounds like a practical option. I'm not sure what you mean by center plate?

Currently, the base to the Oil Filler Neck Is occupied by the line going Into the Charcoal Canister. I plan on axing It and using that nipple for the Catch Can. Although I am undecided at the moment. If I do keep that line, I can use the nipple at the Oil Filler Cap.

I have to sort out some variances b'n my former s4 na to my now s5 TII (J-Spec).

 

Sorry, I should've been a little clearer. One line's on the center plate at the base of the filler neck and the other's actually on the filler neck at the cap end. Both essentially go to the same place, so you should either run both under the car or run both to a can. Don't cap one.