I am curious as to what the hose running from the top of the oil filler neck all the way to the charcoal canister and turbo inlet pipe does? I am going to fabricate my own inlet pipe so if i can avoid welding a little nipple on it for this hose i am going to just get rid of it and cap the open nipples on the cannister and filler neck.

 

PCV system. Allows oil vapors to be burned by the engine. Cuts down on "lung butter" in the oil filler neck.

 

Ahh got it. Guess i'll keep it then, thanks man.