hey guys, i have a question. If I were to put an uppipe and downpipe, would that leave me catless? This is probably a stupid question but i'm a newbie. But anyways, I really don't want to go catless, you guys have any suggestions?
To keep the third cat you could go with a Bosal, Scoobysport, even Perrin if I remember right. I'm sure there's a few more out there. These pipes will remove the second and keep the 3 cat (mid pipe) intact.
I say go with the TurboXS "Stealthback" or turboback system. Assuming you replaced the uppipe with a catless one, putting the TXS turboback leaves one cat (a high-flow cat). So then, say you wanted more performance and louder exhaust, all you have to do is simply remove the cat-pipe and replace it with a "race-pipe or test-pipe." (a direct replacement for the catpipe, and both are about a footlong or so) It's been said that one highflow cat will pass emissions, so I'm hoping that is true.