Ok here goes. I removed the stock catalytic converter and now I am trying to figure out which side of the pipe faces foward. Is it the Side where the HFC is closer to the front or is it the HFC side towards the back. I would also like to know if the O2 bung mounts foward of the car or after the cat as well.



You cannot see it in the pic but where the bulge is the other O2 plug port. Any help is greatly appreciated.

 

looks like it only fits one way, did you test fit it? makes sense that the O2 bung is after the cat.

 

yeah it should only fit one way.

 

Yeah I just figured it out. My head was getting in the way of common sense.