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5.0L (1979-1995) MustangTechnical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.
as air pump if you mean smog pump? yes u can remove it just simply un bolt it and plug the vaccume hoses with a rubber plug, and for emissions you do need it because they check to make sure its there, unless of course u have a friend who over looks that, then u can usually pass with some cats and a muffler, but on the ohter hand i have heard people not passing with out it