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Turbulators?
I think that's what they're called, the spike-like things on the roof of the car where it starts to curve for the back window, seen them mainly on Mitsubishi. Question is: DO THEY REALLY HELP?
Do they make the car more aerodynamic, apparently they're supposed to "trip" the airflow, I think by decreasing the size (or something) of the vortexes that occur at the end of the car. Any thoughts, advice, data?
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