HoosierDaddy
Well-Known Member
They improve mileage by shuttering the grill so air goes over the smooth car body instead of thru the radiator and engine compartment. They are "active" because they only close when the radiator doesn't need more air to cool the engine.At the risk of sounding like a complete idiot, what are active shutters?
I'm pretty sure no GT has them and EcoBoosts do have them. I have no idea about the V6s.
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