If your looking to do it your self and have a mig, a simple solution is to use dual 2" down pipes to a catco dual 2" to single 2.5" cat. Then use a universal exhaust kit from flowmaster. I did a complete exhaust from headers to tail pipe with a single summit muffler for under $100 bucks. You will also need about 2-3 2" J-bends. It tucked up pretty nice and doesn't rattle. If you put in a air injector fitting it will pass emissions without a hitch. I went through the emission ordeal before, what are you failing on.