Recently i have been looking into trying to add true duel (One exhaust from header) exhaust on my 2000 Durango. I have run into a problem though with the third O2 sensor located before the CAT but after the headers join. I've thought of running an X-pipe and putting the O2 sensor there but the problem with that is room underneath the car. Does anyone have any ideas on how to run true duels short of replacing the thirdO2 sensor with a dumby sensor. I have also looked into bigger pipes but dont want to lose back pressure.

 

What i meant to say is one pipe from each header.