As a fellow xB owner I say go for the Fab wing, I have one too ...
I will never know what the impact is to your mpg's, but I will tell you that adjusting the nut behind the wheel will compensate for any particular hit you take for looking cool ..lol
Besides, I know you didn't buy the box for its aerodynamics ..
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Thx NoCO2; "The biggest FE mod you can make is to adjust the nut behind the wheel"
I am a precisional instrument of speed and aeromatics
If your knees bent in the opposite direction......what would a chair look like???
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