[IsaacCarlson]

isn't the air behind the wheel well already turbulent???? I think the exhaust duct would help with that problem by allowing the air to exit in a smoother manner. The orientation and shape of the duct would help the air streams merge together better, right? Imagine how rough an airstream would be if you injected more air into it sideways around a corner, vs. introducing an air stream with an almost identical flow and direction. It is kind of like putting performance heads on your engine....the exhaust streams are already going in the same directin and only merge, vs. stock heads which often meet at almost right angles!!!!

Please correct me if my theory is wrong. It seems like almost anything would help the air stream at this point on the car since it can't really get worse.