I was at a concert the other day and while hanging out outside after the show I saw an 80's Fleetwood like mine leaving the show. Couldn't tell what year it was since it was dark but damn did it sound good. I know all about Flowmaster and all their fine products so that's the brand I wanna go with. What parts should I get to give my car a nicer sound? Muffler and Cat? Maybe just a muffler or just a cat? I don't wanna go dual I wanna keep the stock look and the stock pipes. I'm willing to part out with the muffler and Cat if need be. Any thoughts?