I bought one of these from Unique Autosports on the weekend. I was going to buy the GReddy one (big and empty..), but John recommended this:
It is baffled, and has a big hole up the middle of it (you can see it in the pic), there's a slight gap at the top of this where I think the thing vents to the atmosphere. But because it vents from underneath you can't really see anything "illegal".
Now after reading this thread I think I've installed it correctly, but I'm not sure.
I haven't actually blocked anything off. Should I?
Also, I've left the blue screw in plug (drain) at the bottom of the catch can on.
Did I install it right?
**EDIT: figured out sk's drawings. All fixed now