I am well happy.
I don't find it too loud at all. Don't think I would of been happy with OEM mod only. Below 3k its very civilised still.
I guess BMW are too good at making it so quiet and capable, discreet at the same time. But I want it to be a bit mental (maybe even scary sounding?) when I put my foot down. Just didn't' sound like a V8/420hp was in there before.
PM on the way...