Hi, anyone know what size the vacuum line that has the secondary boost pill in it is? I searched, and I found the size for other lines (ie 4mm for the BOV) but did not find the size for this particular one.

Thankies!

 

Just out of curiosity, why do you need to know this detail? I think that all the factory boost/vacuum lines are the same I.D., but maybe I'm wrong. What do you mean by "secondary" boost pill?

 

I mean the pill that you pull out when you tune your car. I want to leave it in the line and pull off the line, then put on a new piece of hose.

 

4mm will work.

 

Thanks