Originally Posted by 2007wagon
Thanks pyroinsa....those pictures make it easy...now you know why I keep a manual handy...haha.
the focus received a mid gen update in 2005, after that point all north american focus's would have been switched to using the 2.0 duratec (or 2.3l for the ST)
Here are some duratec related threads you can read over:
NEW MEMBERS READ FIRST: DURATEC Performance Chat Stickied Threads
The wiki page at the very top is pretty informative