Originally Posted by Iceman05
Will i get any CELs, backfiring, or other negative problems if i gut my cat? The car is a 98 civic EX (D16Y8). thanks!
You will get a CEL. Also the car will sound much more raspy. The car may backfire, but I doubt it if it's fairly stock. Specially the ignition and cam timing. Why would you want to gut it anyway? Why not just have a test pipe made?