I thought it was 4.4, until we pulled the FD out on my previous ITR after I bought a 4.7 and found out my current one was already 4.7.... that was a 99 build. We counted the teeth on both and they were identical. I know another owner who experienced the same.

I have a 2001 ITR now, manual says 4.4, but speeds/rpm match the previous car too. Toda_au does know his stuff though, which makes me confused!