Hi Im new here. I got a used 96 Ram 2500 V10 4x4. I was looking to put dual exhaust on it. I have a single cat . I have seen V10 with 2 cats. I was woundering how i would go about doing that. There is a o2 sensor in front and one behind the cat. I know i can use a o2 sim on the back one. i how ever did not knot what i can do with the sensor in front.