Anyone ever tried just removing one, cuttin the wires and see what happens? I have a 99SE with a Greddy SP, it had a hole for an O2 sensor behind the cat in it, my car didn't have a sensor there so i welded it shut. Now someone wants to buy it and they actually have a sensor there, lucky me...anyone tried just snippin the wires...what would the ECU think?

 

SES would probably kick out... That O2 monitors the status of the catalytic converters.

 

tell the guy not to worry!! he can order a bung to mount the o2 sensor in from summit racing (www.summitracing.com) for like $8. just get it welded in when he installs the exhaust, and let 'er rip!!