ya doin just the 2 rears or all 4???
ya got stock manifolds or headers???[/QUOTE
Idk wat wld sound better and all stock just magna flow exhaust
very tough call to make on the sound.
what sounds like shit to me is music to someone elses ears.
a few different ways ya can go........
gut/bust out the 2 rear or all cats & make it look like your still stock
remove however many cats & have pipes put in there place
Justin @ JMB performance, a vendor here, has some very nice mid pipes for stock manifold/shorty headers. ya can get them with or without cats
only "suggestion" i can make as far as someone doin the cat work would be Rich @ Rich's Performance Muffler. his number is 972-461-0776, super nice guy, great workmanship. he is Wylie. he also has a web site.
i would try hangin the rear O2 sensors if the fresh air before goin with any kind of O2 sim.