What size are the majority of the rubber vacuum lines under the hood ? The one running to my wastegate is not leaking yet but it's not far from it.

I'm getting ready to install my hardpipes and BOV and want to be sure where I'm getting vacuum for the BOV from is the line going to the throttlebody, correct ? Any idea what size "T" I need there ?

I appreciate all your help.

 

the line that runs from the pcv to the throttle body is what your asking about? its 1/4" i believe. the lines that run off the wastegate are just friggin tiny, i dont know bout those.