Ever seen muffler right by the rear bumper?

[67ss&99ss]

Sorry for the large pic, but use this muffler. It is a flowmaster 1 chamber muffler. These are much more agressive than the 40 series and should give you the sound you are after. The case is about 3" thick, 5" long(excluding the inlet/outlet lengths) and 8" wide. The key is that they will fit into a tight space. I have these on both of my Camaros and this is a friends car with the same mufflers. They are 2.5" and are dumped at the rear axle.

[IMG]http://i222.photobucket.com/albums/dd216/67SS...