[Spoolin]

I'm curious..... What does changing a regular tuned hellcat to this stack actually do? Could you use the fuel button to swap tunes to e85 just as with a demon, of course after having your PCM tuned to accept it, or is there more involved getting it to work? The Demon uses two different PCM's to swap back and forth with on different fuels, doesn't it? I'm unfamiliar on if the stock PCM can be used like a nice standalone and can hold separate tunes to swap between.