You can try a temporary fix by applying an epoxy to cover the crack. (I assume that is problem - it is cracked. Common problem for the Protege) However, that is not a good fix, as far as I know. It...
if it is a 3.8 then it has about 220 at 5200 rpms (3.8 is the v6 1995-2002 i think)
OR
if it is a 3.4 it has about 175 at 5000 rpms. (3.4 is the v6 1994 camaro)
V6 engines dont sound as good as a V8. If you start putting exhaust on V6 engines, it will sound bad and it is not recommended by most shops.
Answer.
I prefer a Flowmaster Cat back system,...
NO. That stuff will cause you more problems. You MUST replace the intake gaskets are you will wind up loosing the whole engine. OIL and engine coolant DON'T MIX.