hey guys i need your help i have a bit of a dilema basicly i have twin duel exit exhausts on my car and now i want to go 3" straight through but want to keep the twin duel exit as it looks so i was thinking could i go 3" from the turbo and have a 3" backbox but then come out with my twin pipe and have the other side as a dummy? would this be the best way to do it? would it make a differece? would it be worth doing?