I just got my headers and y pipe but the y pipe does not have the holes for the rear o2 sensors. What is the easiest way around this? Thanks

 

Disconnect the O2's and have a tuner delete the codes from your computer. The rear O2 sensors are only there to monitor the cats. With a catless Y there is no need for them, which is why there are no holes for them.

 

lol, there's not much point in having rear o2 sensors when you don't have cats. Thunder550 is right, listen to him.

 

Yeah, just follow the wires from the o2 sensors and you will find where they plug into. Just unplug them. I think that it is right on top of the trans crossmember.

 

werd

 

Yes they are plugged in, but it won't make a difference if they are plugged in or not. All the rear o2 sensors do is just monitor the function of the catalytic converters. Even if you unplug them you will still get a CEL. Obviously, once you get a tune you might as well rip them out of there.

 

Thanks for the help