This is a question from someone that's running an AWD conversion, not for mine btw.

Does anyone know if the clutch for a U12/U13 BB SR20DET is compatible with the GTiR tranny?
Or is it going to be too small/too weak, etc???

Thanks,
Travis

Yes, it is.... but the only difference, it's that you'll have to re-drill the U12/U13 flywheel holes if you plan of using the flywheel too, since the GTi-R uses bigger flywheel bolts.