And heres mine so you can hear the diff, same motor, same setup just top one without cats, mine with..
BMW X5 4.8is Exhaust - YouTube
Mine was also a little cold during the vid so it has alot more rasp to it, Once its warm the lower end isnt too loud 0-2k rpm but maybe its just me used to it, above 2-2.5k under load, it screams.
Other thing is its probably not a good comparison as itll sound diff under load and mine just revving lol