I was just wondering on my 95 burb (5.7 L), if the exhaust was made to be a true dual would there need to be dual O2 sensors? I have found many sites that will dual it after the cat and have headers, but none have a set up for true duals.
Also, if two are needed how would that be accomplished?
My desire is to have a true dual system with dual cats, but I just don't know how the system would respond with only one bank of cylinders being monitored by a single O2 sensor. By the way this is still a TBI motor.
I think there is a little misunderstanding. I have a one cat and one O2 sensor (before the cat). If I dual the exhaust do I need to have an O2 sensor in both pipes before each cat.
Or will it be okay to run dual exhaust, dual cat and single sensor before one of the cats.
Yeah, they all suggest an H or X pipe before the cats and put the sensor in there. Local muffler shop just wants to put it in the right bank, just not sure how that will affect the tuning loop since it would only be sensing the exhaust from only half the cylinders. What is your opinion on the single O2 for the right side and none on the left?
My problem with the H or X pipe is the clearance being that the truck is 4x4 I don't want it hanging too low.