I was thinking which usually leads to dumb questions. When we tune the duramax or a an lsX engine say 1999 and newer we have 2 different switches we put into the ecm connector one has 2 postitons and the pther has 5 and then we load a different operating system with EFILive so we can literaly just "switch" programs like you go from windows media player to itunes. Has anyone tried this with the newer chrysler computers? Maybe offer 2-5 different tunes for the owner to switch back and forth from say for daily driving versus 1/8 mile then 1/4 mile and maybe even a crazy racing fuel only tune by just the turn of a knob. Just thinking out loud.