Quote:
Originally Posted by BrooklynG_M3
Just a quick update ive noticed burbles and pops with the controller are much deeper and you get a lot more, one of my friends asked me if i tuned the car due to how much more it was burbling.
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+1
BMW has increased the burble sound from the factory compared to the S55. opening the valves an upgrading the midpipe makes it even louder.