Ram Air / Cold Air Induction is simple
You dont need to waste bullshit amounts of money, or get bullshit parts from ford or buy certain things .
You do a need job, if you want show quality thats up to you, but it sits under the car, where no one sees.
Simple;- Rules are, the less bends/turns in the pipe/hosing, makes the air flow better, long as you have it in a good spot, you can use any hosing, from pvc piping to proper air hosing which is like $15 for like half a metre or metre or so.
You dont have to make it fancy, as long as the air has a nice run and not to many bends, and looks good and not noticable.