Haha, same here. I sent it back and asked for the new style quiet plates to be fitted, only to be told that it already had them!
I just bought a welder (which is much more refined!) as a cheap and cheerful stop gap until I can get a Titan or upgraded OE LSD.
Lol I've just sent it back go check they didn't miss anything as it's the same with the new plates,Titan sounds they way forward !!