a while back when i had my testpipe on with the o2 sensor plugged in the cat conv i kept throwing CEL's. I was talking to a friend the other day, he has a 2000 ITR and he said that his o2 sensor on his cat conv was not even plugged in. he said that he just zip tied to the sway bar and he has not thrown a CEL. just curious if anyone had any experience with this. i know that the ob1 integras wont throw the code anyway but the obdII integras are pretty ticky. i though that i could just get an o2 simulator and bypass the problem. my cat is starting to make funny noises plus its restrictive as crap with the JRSC. i would like to just put my testpipe back on. let me know what you think. thanks.