Quote:
Originally Posted by Tahoe_Hybrid
I have seen some Vortex generators on side mirrors Ford Festa I though I share that they were tiny but it had them
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Sometimes,noise will show up in the acoustic wind tunnel.VGs can be used to tune the resonant frequency of the mirror,kill any booming,etc.,to quiet them down,as perceived from the cabin.
Also,the EPA actually has certain noise criteria for passenger cars.An annoying whistle could be attenuated with cheap aero fixes.