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      12-14-2021, 07:43 AM   #8
gds52
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Drives: BMW Z4M Coupe, BMW 328i E93 Co
Join Date: Oct 2011
Location: NJ

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Quote:
Originally Posted by larrylarry View Post
The dimples trap air which creates a noise. You don't hear it if the windows are up but if they are down and you drive by a vehicle or land divider you can hear it. Think playing card in bicycle spokes.
Good description, thanks.
I guess, it doesn't matter for my pfc08 pads which squeak like hell on the road 🤣
I can see for a road car it may bother some, for track any good sound is a good music.
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