I think you would need stand alone, because the computer is so tough to overwrite. A C4 is a common swap to inconsistent 11 second 5.0's so they run a consistent 10. It also is a manual valve body.
You know, all that "shiftronic,triptronic" and other non new technology bullshit is actually very old. The only thing new is electronic shift solenoids. And that isnt that new either.