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Old 11-10-2012, 02:29 PM
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Itinj6 Itinj6 is offline
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Location: New Jersey
Join Date: Nov 2011
Posts: 2,471
Mein Auto: 2012 650i Convertible
Originally Posted by wassy View Post
Curiously, is the M exhaust in the 650i mpkg the same as the M performance exhaust system for 640i available from BmW? If so, is there a noticeable sound or time difference and how much of it is the 8 vs the 6?
I don't know for certain if they are the same but I would venture to say that if not, they are pretty similar. You can check the part numbers and see of they match, I suppose. I'm in an area of poor service with my phone so searching for and posting a link would be painfully slow for me.

As far as your second question, my original 650 without M-Sport was extremely quiet so I would also say that not much of it comes from the difference between 6 cyl and 8 cyl, as far as sound goes.

What do you mean by time difference, though?
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