In the near future it looks like I'm going to be picking up a Camaro SS or a WS6. If I do buy one I want a really nice performance sound from my exhaust. I would like to get it as close to the sound of the Aston Martin DBS featured in Casino Royale. http://www.youtube.com/watch?v=0utvJuuLV4s Unfortunately that's the best clip I could find but it should provide a decent sound byte for you to hear. I've currently got a 78 Z28 with headers and straight pipe so you should know I'm not afraid of a little noise when it comes to any recommendations you give.

Edelbrock SDT/RPM are great thats what i have or you might like SLP's Loudmouth. If your lookin for great performance try Dynomax, they are very underrated.

i have slp loud mouth 2. it uses a dynomax muffler instead of the resinator. sounds pretty good to me.

Go with the Borla cat back system. It comes with 5 different plates to tune the sound to your liking. Plus mandrel bends for hp and stainless steel will never rust. Best system out there IMO.