December 29, 20168 yr comment_509123 My exhaust manifold has the ceramic coating, and the downpipe has ceramic paint, so welding a bung would probably mess it up. I will have to decide if I get that far. I would only have a meter connected temporarily, anyway. Link to comment https://www.classiczcars.com/forums/topic/51063-wideband-o2-sensor/?&page=3#findComment-509123 Share on other sites More sharing options...
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