This video features some lovely sounding BMW M5 V10's (E60) equipped with a custom made exhaust systems, like Botter exhaust, Eisenmann exhaust and HMS exhaust system! The sound of this car is incredibly loud! Liked the video? Click the 'like' button, comment, and subscribe! Follow me: Subscribe: http://www.YouTube.com/GUMBAL FACEBOOK: http://www.fb.com/GUMBALTV INSTAGRAM: http://www.instagram.com/GUMBALTV TWITTER: http://Twitter.com/GUMBALTV http://www.gumbal.tv