Overtime, the answer to you hanger problem is 3/4" shaft collars. I got them at my local hardware store. I just put one on each of the outer rear hangers and Loc-tited the set screws in the collars. No problem since. I don't have a digital camera or I'd post a pic.
Subie Gal, I know you've got the ScoobySport exhaust so I'm guessing you are interested in the headers. I don't have them, so I don't know much about them.
As for the Borla being only 2", it is still a noticeable improvement over stock at the high end even with the stock exhaust manifold and a K&N panel filter.