I've tried to to a video with sound... but doesn't come across like it sounds. Best guess would be like the stock V-6 2012 Mustang. Just enough growl to notice. Maybe when I get back to IA, I can get a video + sound clip when I have the SeaDoo's trailering behind. Will make one of my kids ride on a SeaDoo (on trailer) and video it! Or maybe they can do it with the tailgate open from the back! Of course, it may take a couple 6 packs to build up their courage...
Now when I added the NESHO x-pipe that deletes the 3rd cat and mid-muffler, it got considerably louder. Wife doesn't like that setup when she sits in 3rd row. Sounds fine from front 2 rows though. Because I set it up to be removable with extra flanges, it currently is standing in my garage.