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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.
Think of it as a "chemical"intercooler for a car with a supercharger or turbocharger. It basically cools the air temp in the intakeand increase the octane very slightly, thus allowing you to run more timing and allowing you to get more power. Without forced induction, it's a waste of money.