I have a 96 nissan Ma, that Ijust bought a y pipe from another org. Well here is my ? I notice that the pipe has two o2 holes one on each up swing. Do I or should I replace them both with 117,000 miles on the car 2 I notice on picture that some max's have them on the up swings and some of them have one down by the flex section , how will I know which is mine ?
Thanks
For the help and info.
Todd