Quote:
Originally Posted by JeepNmpg2
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See, roof racks can be good for mpg.
You'll probably want to tuft test it eventually to find out where you have attached flow and where your angles are too steep / abrupt. I think you'll have flow detachment at the sudden transition from square to angled, especially near the top corners. But if you're seeing an mpg improvement, it's obviously better than stock.
