FIPK adapter

I was wondering how hard would it be to make my own Adapter for the MAF to put on a cone filter? I wanna hear that turbo spool and the adapter looks like a piece of plastic that wouldnt be hard to make. Does anyone have any pics of the adapter???? I really dont want to pay $120 bucks for a filter and piece of plastic and a bracket. I would like to get the extreme air flow top cone filter too.