Cat backs for a 4 Banger

Anyone know any good cat backs for my 03 2.7 L? I just learned that my stock cat is also on its way out the door. So now I need a cat back exhaust. It would probably be cheapest to get a cat back and do it myself.
Any help is appreciated
Liam

 

I may be misunderstanding the question, but a cat-back system will not help you with a bad cat. A cat-back system does not include a cat.

 

Right well then I might as well just go with a custom setup. What's a good high flow cat?

 

What's the question, exactly? If you are opting to redo your exhaust due to needing to replace the cat anyway, then I would suggest keeping the setup the same as stock. Get a halfway decent muffler and keep your mandrel pipe diameter the same.