Sounds nice! I have the same set up on my 3.0, except the my glasspack mufflers are a little smaller than yours.

Re: Custom exhaust on my X5 3.0
 

My exhaust guy said his supplier gets them right from the manufacturer. He said they are just like 3" Corsa tips, but without "Corsa" etched into them and their markup. They are staggered, so there is a right and left. Hope that helps.