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what would happen if you put the 05-07 injectors in an 03 engine, would it hurt anything/help anything? I asked the local ford tech and he didn't know.
i thought that the 03 and 04 injectors were the same and have the 3cez prefix on the part#, where as the 05-07 injectors have the 4cez prefix. i would like to find out what the difference is.