there factory oxygen sensor bolts into place near the flange at the end of the headers
they came out of a sprinter with a JDM bellhousing, they won't fit an oz spec sprinter without modification as they foul the clutch slave cylinder. i bought a standard RWD manifold so i wouldnt have to modify them.
if i didnt already have the standard manifold i would trade you straight up, but as i do, ill take $150 for them, which is what i paid for my standard manifold.
let me know what you think, they are in the blackburn area at the moment.