Don't the rumors point to a different motor for the RS version though, a 2.3L eco boost that's going in the Mustangs? Guess it would be the same motor family possibly so ECU tuning would be similar?
2001 ZX3 2.0L Zetec-
Hatch Nation #42
Going through Rebuild See "The TICK Build Thread" for details (http://www.focusfanatics.com/forum/showthread.php?t=289168&referrerid=62897)