Quote:
Originally Posted by M2siast
Every BMW does that, I believe the clutch alleviates the engine so it runs more freely (observe the RPMs raise when clutched in) so the noise changes.
Someone alluded to an exhaust flap opening, but the sound changes with the flaps 100% open too (meaning they can’t open further).
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Ah, got you.
That second scenario you mentioned is what made me question whether it was just a sound difference being pumped into the cabin via the speakers.
Thanks!