I couldn't tell a difference. I wasn't concerned about sound, but I had hoped they might cut down the amount of dirty wetness which seems to infiltrate the door frames especially after driving in the rain, but no such luck. Didn't notice any difference in sound either.
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16 BMW M235i Alpine White Convertible / MT (Daily Driver)
16 Audi Q5 3.0T (Wife's Daily Driver)
66 Porsche 912 (Project)
17 GMC Canyon Denali Long Bed 4x4 (Tailgatin, Haulin & Towin)
various 'one design' sailboats / stinky hockey gear
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