Found this today. Plugged hose running from passenger side PCV valve. I'm assuming this was originally run to part of the intake? Any reason other than this aftermarket intake you see in the pic that it would have been plugged?
no you need to get a barb and do it. You could also install a seperate Airfilter "Mini PCV Style" the purpose was to vent off fumes and reburn them into the intake I believe. The Double t and PCV work when under boost they close off and not in boost vents to atmosphere/intake. I believe I am accurate someone else can chime in if not.