if your mainly working on the exhaust, go ahead and buy some0 headers from
www.ptuning.com they have the Hot Shot brand for your car. It comes with the headers and the down pipe for about $400 shipped. You can also look for the whole kit(not from hot shot). Then you will have everything but headers (tip, mid, and rear piping). But then you'll be a little broke. Email the dealers on what ever you get, so you can get some CARB info to see if its legal in your state. You might be able to find just the mid pipe on ebay, i seen one on there before. but may not be legal??