I really don't have to have a cat back as my iroc already has the good exhaust set up with it. I just need a used muffler if any one has one for sale. Any thing good could work. Even if it's not a cross flow an just a single flow master 40 series or so.. then I'll think about running duals. I have a buddy willing to switch it duals an dump them with magna flow tips sticking out just underneath the ground effect's before the tires. this would make things a bit diffrent than other set up's I seen mostly on 3rd gens.
Peace..

BrandenCali