I have searched, but the most common exhaust mod here is resonator delete with x pipe (or h pipe). I have an e39 M5 with a muffler delete (which is more popular) and I love the sound. It's loud when you get on it, but pretty tame in just normal driving conditions. It even passes the wife test who is very "sensitive" to those things.
I did find one thread where someone did it on a 4.4 with a video and one with a 4.6is, but that video was dead. Would it sound close to the same as my M5 or would it be much different?