I got Pacesetter LT and saw a thread about the non-foulers trick for the 02 sensors but my question is do i put the non-foulers in the Y pipe for the rear 02 sensors or on the headers for the front 02 sensors?? can someone help plz!!! thanks..

 

They will go in the rear. The rear o2s detect if the cats are working correctly or not and since you will not have cats, this is wear they will need to go.

 

cool thanks alot