Use a kit from these guys. Its the easiest way to build your own kit. whatever reso, no reso, whatever mufflers, no mufflers. And whatever tips you want. Ive installed and used several of these to build exhaust systems for my Charger and GTP as well as my buddies Silverado, CTV-V and Subi.

http://www.mandrelexhaustsystems.com...rand-prix.html