Tuned BMW 6 series AMAZING sound!!

http://carbuzz.com/ this amazing BMW M6 was on newbury street. right next to it is a mercedes C63 AMG. If anyone knows what tuning company did this car PLEASE tell me i am extremely curious to find out what company made this incredible car?!?

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BMW M6 with Eisenmann Race Exhaust Accelerations and Revs!
Full HD 1080p Video By NM2255: Matte white BMW M6 E63 with an extremely loud Eisenmann race Exhaust system!! Listen to its lovely sound with great accelerations and revs! "Like" my Facebook page: http://www.facebook.com/pages/NM2255/258205730865220





BMW M6 V10 G POWER meets -Maserati Quattroporte-
Little Sound Contest with Maserati Quattroporte





2008 Custom BMW M6 Convertible For Sale at Arena Motor Group
For more info go to this URL: http://arenamotorgroup.com/web/1423/vehicle/356618/2008-BMW-6-Series-M6





BMW M6 with Supersprint exhaust
BMW M6 with Supersprint Exhaust revving and accelerating.




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