Ok so i went to my neighbors house today(exhaust guy) and got him to cut my rear cats and put an x-pipe on for me... so i thought the o2 censors were in the rear cats.. but i guess not.. they were in the pipe in between the front and rear cats... so when i cut rear cats i didnt have to mess with them.. thank god.. no eliminators.. no check engine light.. im really suprised with the sound. i have flows... and it sounded stock before all this.. but now its great just wanted to know if anyone else new about the 02 censors being inbetween the cats..

 

I think 04's are different than others for some reason. That's why when you buy from manufacture they say you have to get extenders for the o2 sensers. I could be wrong,[&:][sm=gears.gif]

 

i guess that sounds about right.. but either way im happy.. just thought id share with everyone.. but people who say x-pipe and flows on mix... man are they crazy... but to each his own... my setup and my friends slp sound so similar its crazy.. he has h-pipe and slp lm1's.. call me crazy but youd have to hear it to believe it

 

That is strange, mine were behind all of the cats.

The rear 02 sensors do nothing more than just montior to make sure you acutally have the cats installed and that they are working. I guess they just don't care about hte rear cats anymore.