I have a 98 GSR swap that I'm about to put into my 96 Civic. The only problem is that I don't have the catalytic converter and I'm having a lot of trouble finding one. I know that on the GSR cat, the two O2 sensors are installed directly on the cat.

Since I'm having so much trouble finding one, I was wondering if it would be just as good if I bought an RS cat and had the primary O2 sensor tapped into the downpipe?