if you could give me links to a place describing the system or some brand names that would be great!thanks!
Your Mustang HAS a cold air intake -- the engineers at Ford are perfectly capable of installing a piece of aluminum pipe if it actually increased hp, (which it doesn't), so save your money.
The best cold air intake that you can get is the factory cold air intake. Your intake all ready has duct work that gets its air from outside the engine compartment. The really funny part is that most aftermarket cold air intakes do not get there air from outside the engine compartment. They get there air from directly behind the radiator (one of the hottest places that they could get air from) so they are really hot air intakes not cold. also the fancy aluminum pipe does not flow any better that a plastic pipe (it just looks better). They do not give you any noticeable H.P. gains what so ever. Look at it this way if you completely remove the air filter and all the duct work going to it you may gain 2 or 3 horse power so how is putting a shinny pipe on it going to make it flow better than a completely unrestricted flow. does not make sense huh. All they do is cost you a bunch of money look shiny and make you car sound like it has a vacuum leak. So unless you just have to have that shiny metal pipe leave the air intake alone you will be sadly disappointed.