Hi Lyn,
I built my own headers and sidepipes. It's not too hard to do if you've got some welding skills and some patience.
The side pipes have cat converters in them and the mufflers slide apart so you can repack them (The join is almost invisible).
If you want to run sidepipes definitely think about using cat converters in them as the fines for being caught "catless" if your car requires them for emissions are hefty. The only problem is finding a high flowing cat that will fit inside the pipe. DiFilippo Engineering supplied the ones I used but they are pricey at about $245 each.
Here's a recent pic of my pipes:
Headers and Sidepipes
Cheers