Dude you have got to think!
You HONESTLY believe the MB (and AMFG for that matter) Automatic Transmission(which is not even an ATX), is ANYTHING like the one in you Mystique?!
That is such a poor comparison that it's laughable!
The CD4E is NOT designed to handle the power from even a 3L (as we've seen), let alone a boosted Zetec!
Get a clue!