I just ordered a set of flowmasters from jegs that are 2.5 offset in, offset out. I told the guy that they were for a mustang and that i was going to need two of them. Well i got them today and they sent me two of of the same muffler, so the question is did they send the right ones or would you have to turn one of them upsidedown? I wouldn't think you would turn one around because that would put the outlet towards the front, right? And if you turned one upside down, the baffles inside the mufflers would be different, right?