[youtube]Gq5b2wXIbh0[/youtube]
Here you go Dillan, it's not quite as loud on idle but "whooshes" a bit when it's going, obviously it has the rev-restriction on but I think you get the idea, it hisses a bit when I let off but you can only hear that when it's in motion. So not too in your face in sound but more vocal than a normal V6 CDI.
You'll have to take some more videos of yours when the system has bedded in, probably take a few hundred miles or so, just an excuse to get the car out and take it for a nice long drive for a few hours