Join Date: Apr 2002
Location: Goose Bay Labrador
Hello there, I have a 97 TJ, and I also had a problem with my CAT being noisy....so i decided to GUT it with a broomstick....I didnt notice any performance gains at all, I didn't notice anything but Louder muffler noise...and the noise didnt sound impreesive at all..it sounded dull and dead.
There are 2 O2 sensors- one before the cat, one after the cat, once the CAT was removed my O2 sensor caused the " Check Engine light to illuminate as that happened the Jeep began to miss and hesitate....It turned out that having the CAT gutted caused the 02 sensors to foul up twice as fast as they normally would....
My advice.....Put a CAT on it no matter what. your gonna end up buying 2 new 02 sensors eventually, which in turn is the same price as a cat.
97 TJ Sahara 4.0, Old man emu 2" lift 1/4 coil spacers, 2 " body, 33 M/T KM's., quick disconnects, throttle body spacer, K % N filter,