I have a Flowmaster cat-back that was installed on my car before i got it. Whoever installed it did a very crappy job. The tailpipes rub on the tires and all I hear is the exhaust banging against the frame. Since I want to run bigger tires in the spring would it be possible to just dump my exhaust after the mufflers. This would allow me to run bigger tires and I don't have an o/r h-pipe (yet) so I won't have to worry about the smell of gas. Would this be legal in the state of Pennsylvania?