Hello all, does anyone know the inner diameter of a midpipe or collector for a muzzy exhaust system? My guess is 2". I plan on cutting and welding my stock system into a 4-2-1 configuration.I need the measurement for a guidline I dont want to go to big and loose the scavenging affect and midrange. Because Stock header primaries are smaller than all aftermarket exhaust is another reason for concern. Any reply would be appreciated.