Originally Posted by John_01
Yes, I also read that on the US forum. I'd expect a genuine BMW exhaust not to have any serious drone issues, but I think it still depends a bit on the user's preference for sound. I still intend to get a Eisenmann muffler but I'm going to leave it until around mid year, mainly because I'll be taking my car to the dealer for some warranty work and servicing.
Although expensive, can't wait to hear it!