Originally Posted by wasianp206

are you talking about running the stock cat? it has a cat for an ex on it right now. i took it back to the shop they said they would move one of the sensor to the back of the cat where it should be, they even charged me for part of the labor. today i did an oil change and noticed that they didnt move the o2 sensor to the back like they said they did. i'm not sure but it looks like the o2 sensor was on the top of the cat, looks like they just moved the sensor onto the side but still in the front.