I am looking to improve the exhaust sound on my 550i. In the past, I was happy with a loud exhaust (had E39 M5 with SS x-pipe and Kelleners cans). If anyone has or has heard the Eisenman exhaust on the 550i, I would appreciate your comments (sound clips even more appreciated).

Comments or sound clips on any other exhaust for the 550i are also welcome.

Regards,

Al