Well, here is a video I found after we put on the AR 4" DP along with the MadDad Euro Muffler delete.
This video does not do the exhaust justice. It is extremely loud, but I love it. There is a bit of drone, but then again I have the Harmon Kardon to drown it all out. I have been around a lot of 1Addicts and BMW owners, and I have been told multiple times, this is the loudest car they have ever heard.