Which is exhaust would be the best?

I have a 2003 Ford Mustang V6 with a stock exhaust system. I'm looking to change it to a dual exhaust. I saw that I can get a dual exhaust converter that hooks up to the factory Y pipe for $350 on American Muscle buy would it be better to spend more and change the pipes to either H or X pipes instead of hooking up the converter? I'm cheap so that's why I'm asking lol

Read more: Which is exhaust would be the best?