You guy's need to talk to Conrad at Budsmufflerservice.com. I got a really nice custom Magnaflow dual exhaust from there and it's the perfect combo of great sound ,but not too loud plus better flow. Car is really just jumping to redline now. Well worth the $500+ I paid for it.

 

I have the same setup, it's nice, although I am having some wear and tear issues on the pipes. It's still functional, just getting ugly.