I put some (actual, as in from an airplane parts catalog) vortex generators on my hybrid. It slightly increased gas mileage and slightly reduced noise.
replyThe less aerodynamic the vehicle, the more noticeable the result will probably be.
>It slightly increased gas mileage and slightly reduced noise.
replyBetween the day to day road conditions and different routes noise and the modest effect, I'd say this would be impossible to tell.
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