Running vacuum lines for turbo install/Quick question

ASSISTANCE Forced Induction
1

Alright, so I’ve finally got my setup almost done, but first I need to resolve a question.
On my b18a, there were 2 vacuum lines that ran to the stock intake…What are these lines function?

Also, since they aren’t being used, should I plug them? or just take the hoses off and leave them to vent?

2

Never vent vacuum. Plug them or use them for something else.

MantisX

3

there are a lot of lines (not just 2) that run to the intake man. there are very few that you can just remove (cruse control is one) don’t just let them vent eaither, it will give you problems