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Originally Posted by celica2evo
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I don't think that I'm the only one with this question but what exactly is the vortex wanted for? Seems like it would create more drag which you don't want
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Taken from the other site.
The VG reduces turbulence in the area over the trunk and brings down a stable airflow past the wing to increase downforce. But it has the added benefit of reducing your drag coefficient a bit. And if you can add the benefit of a better drag coefficient, then why not. 1.6% may not seem like much and you may not see a difference in daily driving but I guarantee it will help. Plus I believe that the faster you go ,the more significant will be the change
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