Hey guys new to my S550 2019 GT Coyote A10, help me understand why I cant pull the factory PCM and grab another get it hack/flashed and then tune on that one like Im used to on GM/Mopar? What are the obstacles is it possible any links to buying it...I have the tick which is really holding me back from any mods or learning much about the metrics within the tune/platform......

thanks
Shawn