Thinking about exhaust

I am thinking about getting an exhaust installed in my M5. What do you recommend? I don't want too loud but I want to be able to show off if needed and also keep the warranty

Maybe you want to look into the Eisenmann, its one of the best out there. While it will be a bit out, its a "good" loud

http://www.bimmerzone.com/BMW_Perfor...258-00831.html

there is a video that you can look at.

I do like the sound of that. The guy at the dealership said that the m performance sounds really nice too, but I think it's a little too crackly for my taste.