junkyard pcm's

i’m ordering a reprogramming pcm for my car… the company gives a core charge and refunds it when you send your pcm in, yadda yadda… instead, i’m just gonna send them a pcm from a junked car and keep mine… anyone have any idea what these go for at a salvage yard? i called 3 places, but they were closed apparently… :dunno:

what service # u need?