Wow, not impressed with the sound quality at all. I think I should have pulled the 928 all the way out of the garage because I can hear the engine noise (the covers are off so all the sprockets being turned by the tb can be heard).
The set-up; y pipe to single line to resonator to Moroso spiralflow muffler.
FWIW, here's the video.
YouTube - 928 exhaust