being that the window vents only touch the glass when it closes, the interference should be minimal. after the glass lowers from the 1/2 inch section inside the window channel, there shouldn't be any contact w/ the visors at all. long story short, the interference (if any) probably wouldn't be noticable.
this is theoretical of course being that i don't have them. i just ordered the recently re-comissioned visors from nissan, but those use adhesive and are outside the channel.
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