Have a look at this post.
http://www.talkmorgan.com/ubbthreads.php/galleries/626586 Unfortunately AZJowett didn't do the notes with a file size that is big enough to read easily but the photos are helpful. The "Bafflectomy" will make your M3W run better but it will be LOUD. Possibly better to cut out a baffle and try before removing everything. There are several people who have done this on here and I am sure they will advise. If you want free flowing exhaust and quiet, then I can confirm that the G56 option is very good, although expensive.
