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M Sport Exhaust
This was done to death in the US...
But now cars have arrived in Europe, please can anyone with the M Sport exhaust confirm whether it makes any difference to the noise at all? e.g. raspy sound, overruns, pops etc?
I would like to know if fuel makes a difference, if mine is "broken" or whether it is BMW making a very unfunny joke.
Thanks in advance!
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