Quote:
Originally Posted by Phase
Wonder if I should take my spoiler off and just extend and lower my rear roof line on my Ioniq then add a little flippy spoiler at the end
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I advise against it.
The existing tearing edge of the OEM rear spoiler is at the 'proper' elevation.
Any body extension needs to follow from there, and along the imaginary contour it defines, just as Hyundai does with the Ioniq 6.
If you extend from a lower point you invite separation, a cardinal sin in aerodynamics.