Piston Slap: Buffeting Past the Helicopter Effect?

Scott writes:

Hi Sajeev!

I have a 2015 Civic, but my question applies to lots of cars.

I live in Maine, which has lots of nice weather for driving around with the windows down. The buffeting, or “helicopter effect”, with the windows down is driving me batty! Also the “white noise” of the rushing wind is quite loud when the windows are open. I can adjust the windows to limit both issues somewhat, but is there anything else I can do?

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