The assman eh, nice. You could bench test or datalog. if you do not feel there is an issue do not spend the money. There are many parts that definitively help performance. Look around as most of us have advice a plenty> are you posted up on the 1/4 mile time slip thread? thats pretty quick!I dont own a boost gauge or anything like that but I want to know if there is any other way to figure out if its leaking?
I ran a 13.6 with I/MM so I know its fast and im afraid its a waste of money to get a forge bpv or similar product.