I just have a couple of quick questions about gettin an electric cutout. Should I go with 2 cutouts since I have 2 cats or will one be sufficient? Also will I need O2 sims to keep from getting codes thrown. I know summit racing a jegs sale them (cutouts) for about $70-80 anyone else know of any place I can get them or O2 sims for a good price?

 

you just need one, unless you have "true" duals. It wont throw any codes.