Would I be able to plug my 02 sensor into the bung on the ITR header, if I used a cat with no 02 bungs? I only have one sensor (OBD1) that normally goes into the cat...could I just pop it in the header instead or would I get a CEL or different readings?

I assume I would also need a new b-pipe as well, as I wouldnt be able to use my 95 GSR B-pipe correct?