RKSPORT HEADERS and O2 sensor

[pgriffith]

I just got the RKSPORT headers installed. They look great in there. But I was just curious. There is a 02 sensor bung on the Y pipe right before the cat. Our sensor is right after the cat. I got a catco cat that does not have a whole for the sensor. Would I be able to put this sensor in the y pipe before the cat. Or does this sensor only work after the cat?

[Seppo Kaitainen]

Some early years of the 3.8(maybe the 3.4 too) had 4 o2 sensors. You will most likely get an SES light if you place the behind the cat o2 in the y-pipe.

[97camRS]

can't you just get a o2 simulator?

[RacerJ]

Up until '97 (I think) the 3.8s had 4 O2 sensors. In the 98+ cars, they eliminated the O2 sensor that was before the cat.

So just visit your local exhaust shop, have them plug the bung in the Y-pipe, and install a new bung after the cat.