Catch Can

I just have some questions concerning whether a catch can is necessary or not in my turbo setup? I understand the whole idea behind it, but is it necessary or just beneficial if I do use it?

Secondly, I’ve read the big post on honda-tech about how to set it up, and it pretty much confuses the hell out of it. If anybody has anymore info out there, please share it or point me towards it.

I would recommend reading this blurb out of the turbo guide. I used the second option and just but a breather filter on my valve cover. PCV in turbo guide

u need one to get rid of the crakcase pressure or else you could or will blow your pistons rings