Does a original 75 dart swinger with a 318 have EGR?

Cool well I'm gonna take out the egr system when i switch manifolds. Now I'm in the process of swapping stock headers for a set of block hungers by patriot and dual exhaust. Just can't figure out what muffler I wanna run. I was thinking thrush turbos or a flowmaster? I don't wanna get too pricey like borla or anything about 75 bucks a muffler. Just something with a real loud and deep sound. The louder the better in my opinion.