OK, I noticed I have a split manifold, meaning 2 exhaust ports. I had my buddy that runs an exhaust shop bend me some pipes today, and run true duel 2 1/4 pipes, leaveing the cats installed near the manifold. I didn't care what kind of mufflers got wellded on, as long as they were quiet. Magnaflow makes a muffler for this application he said, duel in duel out. I said sure, why not, like a built in crossover, as long as it's quiet, go for it. Quiet is a big thing for me, cuz you never know what niebhorhood you will be in when you see that perfect retention pond. Well, Magnaflow AIN'T quiet. At 3500 RPM's my Jeep now sounds like a Honda from the Fast and the Furious! At idle, it sounds like a wet fart gone bad. He want's me to hear a Flowmaster duel in duel out first of the week. I'm thinking more like the Walker's on Grandma's Caprice.