Need Protege5 exhaust help

2003 protege 5
So my cat is bad and I’m just gonna do headers back (never done exhaust other than a bolt on cat back) I have a magnaflow cat back picked out and can find headers, what’s my best option for a cat? And is there anything else in between? I found some diagrams but keep getting different results on them. Any help is appreciated.
Thanks in advance.


___ 323F ___
I have a couple in the attic. 1 used OBX and one unused ebay one. Both have egr oriented correctly. $30 + shipping for either...............I will provide pics with signage if interested along with tracking if really interested...........