breather

Anybody with a 225 LCR and a ramair maxflow induction kit did you fit a breather filter as well as I've heard varying schools of thought on this one....please advise.

the y shaped breather pipe ontop of the engine... what does it do? does it have much of a part to play during cold start?

Been having a few probs with my car recently, basically not boosting as it should and poor running. Felt like I had hardly any boost when travelling back home tonight :( Got back and checked a few of the vacum hose connections that didnt seem too tight. Also took off the dump valve to see if...