Thread: Exhaust
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      02-17-2020, 12:02 AM   #64
M powa
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Drives: 2014 435xi
Join Date: Sep 2015
Location: BC

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Anyone notice , after removing the valve and leave it open , regardless comfort or sport the entire car drones really bad
Even the front row at 1600-2000 rpm , especially cruising on the highway the drone is really really loud, almost as if it’s been straight piped

Last edited by M powa; 02-17-2020 at 12:08 AM..
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