Quote:
Originally Posted by warcity
I removed the primary resonator yesterday. Made a tiny tiny difference. I'm going back to remove secondary res. Agreed. It's quiet. Very quiet. My 2018 M440 was twice as loud.
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Have you had someone rev it for you from the outside? Stock I louder than I thought.
The interior is just really well sound proofed.
In my m2c I ran with the back seats down at all times for more volume, maybe give that a shot too.