I am curious. I think I am changing my exhaust setup in the very near future due to mine being too loud now. I changed to an off road h pipe and my spintech prostreets are too loud. They sound great but it is too much for me. Can't handle it. What is the difference in sound between the original 40 series flows and the mac flowpaths. All sound clips are more than welcome as always. And yes I have heard mustangexhaust.com but that isn't what i'm looking for. Thanks,
