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