O2 sensor upstream
 

need 2 upstream O2 sensors, my oems stripped out very badly. cheapest I found in any of the auto stores around me is 190 a piece and I think that is a BS price.

this just happened to me last week and i also asked for the same thing and got nothing. just bought my 2 last week and man it hurt the pocket. but had to do it. GL hope someone helps u out on here. im assuming your putting on headers???

Yep putting on headers, apparently Nissan doesn't believe in anti seize or welding the bung to the stock headers. Think I may try a universal one and see if I can make it work

yeah or seems like the guy in charge to anti seize them (in assembly line) forgot or slacked off. but i learned that the hard way. GL