Quote:
Originally Posted by Bimmer_Bro
At low throttles and lower rpm as the turbos spool it almost sounds like a police siren in the distance. I had this once but turns out my exhaust was touching the subframe bringing unwanted sounds into the cabin.
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Whooohhh whooohh dude! This could be it! I remember hearing no noise after the first drive after DP install, but then it changed. Maybe my exhaust shifted slightly after driving.
That's exactly how it sounds. Like an ambulance or police car from 4-5 blocks away.