Quote:
Originally Posted by southern6er22
The M Sport's exhaust on the 650s is tuned slight differently and results in a much better sound. I know that it is not listed on any of the BMWNA specs regarding the package, but if you listen to them side-by-side you can hear a huge difference. Someone in another forum recently confirmed that the exhaust systems have the same parts but they tinkered with the M Sport to make them sound more aggressive. See the links below for more on this debate.
http://www.bimmerfest.com/forums/sho...d.php?t=596612
http://www.bimmerfest.com/forums/sho...d.php?t=590624 |
There's been a lot of conjecture on this. However, according to people in the know from BMW NA the exhaust tuning for the F12/F13 MSport and NON-Msport in the North American market is the same. There may be slight variations from vehicle to vehicle but thats about it.