Air intake replacing?

I have a 5.4l 2000 ford F150 and i was gonna install a cold air intake. But instead i talked to a person from auto zone and he said to order a Mass air flow sensor adapter by Spectre to replace the old one or something like that so i can put that air filter cone on it and he said its the same thing as a cold air intake, just not the same tubes. Does anyone know how to do this??