2007 Kia Optima EX V6 what is it I don't change the cats and the code still pops up

Question

2007 Kia Optima EX V6 with code P0430 can it be my flex pipe it has a hole in it?

Answer 1

Yes, that can and more than likely is the problem, Any exhaust  leak prior to the catalytic convertor will set a catalytic convertor code