I was thinking of adding a cold air induction to my VZ Holden Adventra LX6 wagon. Would it improve economy?
Generally it would. The colder air entering the engine is denser than the air that’s drawn in from the engine compartment, which is heated by the engine, so you pack more in to the cylinders. But before you do fit it check to see where the air is being drawn from on your car as many new cars already have a form of cold air intake.
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