I just got a new z-tube and it does not have the hole for the (emissions?) hose that fits in the side. Do I need to drill it out and attach that hose? What's it's purpose? Can I just block it off?

I'll probably go ahead and drill it out so everything goes where it's supposed to.

 

There should be a nipple on the tube to connect the hose to seen below...

 

There ain't no sech a thing on this one. Bump for advice - does this hose serve a purpose? Warming up my drill press as I type...

EDIT: I have the Stillen already, replacing it with...something else.

 

All it is is a breather tube for the PCV system. You can drill a hole and put in a niple and attach the hose...harm no foul. Or just got yo autozone, and get one of those "PCV breather filters" and use that on the end of the hose also no harm no foul....same thing basically.

 

The tube is in now, yeah, I think I might just go with a small filter on the emissions hose.

Thanks all.