Turbo Slug

Hey guys! Quick question!

 

Ok so I'm currently running a turbo smart manual boost T on my 1995 gc8 wrx and I recently installed a front mount kit and in the process I had to remove the stock air box...

 

I  am currently just running some pantyhose over mesh so I don't suck up any chunks in its place but still get good air flow and I have wound down my boost t all the way so I should be running stock boost... 12-13psi max with a little creep on cool days...

 

 

 

Well anyways, today I was in third gear and hitting boost. The needle kept creeping until it reached around 18psi and I eased right off... It was still climbing having only reached around 4500rpms... Def don't want to be running such high numbers.. 15-16psi max boost after I upgrade my fuel pump haha....

 

I have tried adjusting the boost T both ways and even set it in the middle and still hitting well over 15psi.... I honestly don't know how much boost it's running as I eased off after 18psi but it was still climbing steadily...

 

So whats the go? Is it my boost t? Is it my front mount? is it from all the extra air from no filter?

Hey guys,

About to undergo a fmic install on my 1996 gc8 wrx and have a couple quick questions:

1. In the pic below, what is that circled line attatched to the resonator box thing?

Do I need it? Can I block it up and run a straight pipe instead of the res box?

If I do need it, how can I make it work?

Thanks guys, sorry about the silly questions
Pic of the line