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Old 09-06-2011, 12:11 PM   #19 (permalink)
wyatt
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Join Date: Jul 2008
Location: North Central Alabama
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My friend got a bunch and we put them on his Ford E150 van. I posted on here a while ago that they did not help his Cd when installed per manufacturers directions. They actually increased drag by about 3%. They did pull the trailing wake in sooner, but I don't see that as being a real benefit to most people.
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