Quote:
Originally Posted by desirusso
So the exhaust was one of the most important sounds to me when buying this car. You can't hear a difference in comfort mode but you can in Sport/Sport Plus... I drove the X3 M 40i and that exhaust is different, more popping sounding is what we came up with to describe it. The start up of the 50i just sounds real good when cold ... once it warms up then it fades a bit.
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M40i still fades when started warm like the 50i