Originally Posted by RPS1981

That's true assuming a conversion has already been done to the SE backing plate. If that's been done, then you are correct. A cover change won't make a difference. Merely cosmetic.

BUT, if you're talking about going from a completely stock AC with the small inlet opening to some other air cleaner assembly, then you are altering airflow.

OEM air cleaner housings (not talking about the filter itself) are restrictive by design.