Something is not right...... That is the main reason you should have returned it. Maybe also check the install. I suppose if it is not snug in the silicon holders it would vibrate. I have never heard an E93 with mods so I can't say if it is normal. I can say I have no annoying drone. And I have freer flow front section too.
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Originally Posted by Doru in Romania
man i believe you but mine drones so bad that feel a kind of pressure in my ears with top down at idle and then when cruising. exactly, it's a resonance. also feel a vibration in all car that goes to the steering wheel as well. maybe something not tighen properly when installing? or those bad welds i have make the damn thing to vibrate?
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1987 Buick Grand National, 2009 BMW E90 M3, 2016 Audi S6, 2018 MB E63S AMG, currently in 2021 M5 Competition