OK - a question for thee bunch. The Z shaped hose under the inlet mani for the PCV system - yes the one that always splits - I have a question about. My was shot, so rather than do it properly and pay £25 quid for a new one from Audi, I decided to make one. That has lasted for about 5 months, but now gone bang, so I am looking at alternatives. As far as I can see, there isn't a silicone one in existence. So I'm considering just blocking it off at the inlet mani end, and the putting a breather filter on the one way valve. Can anyone see any long term problems with this? I can't. AFAIK the system only vents gas from the crankcase to the inlet manifold through the one way valve setup - meaning that it wouldn't suck air into the crank case anyway.... Thoughts?