OK this may sound stupid, but, I need the dimensions (height and width) for a stock muffler. 1955 Ford Fairlane V8 with dual exhaust. The reason.. I want to buy Magna-flows but they show a 4h x 9w and a 5h x 9w, I have a set of 5x9's but they look like they will be above the frame, possibly against the bottom of the floor. Currently the body is on the rotisserie and I'm trying to get the frame completely ***embled before mounting the body. What I have are part number MPE 12256 from Summit. I have 200.00 plus in them and will sell them for 100.00 plus shipping if anyone wants them