I just got a brand new exhaust that hasn't been out yet. Its called the MRF Engineering Velaforza full system and its the best exhaust i have had or heard ever. It sounds insane but its not so loud that it wakes everyone up. no drone what so ever and it sounds like a deep exotic tone. Ill do a full write up as soon as i get a chance this weekend. their website is MRFpower.com might be exactly what your looking for
BEFORE YOU BUY YOUR NEXT BMW, PM ME FIRST WE CAN HOOK YOU UP!
David Aviles: firstname.lastname@example.org - Cell:202-262-2900
If you have any issues getting a hold of David PLEASE PM me, I'm available everyday till 645pm!