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  1. JTDm - Downpipe Lambda sensor thread/socket size?

    Alfa 147, 156 & GT
    Anyone know if this is a simple standard size? The mounting boss in my decat pipe sits the lambda sensor pushed hard up against the AC compressor, to the point that it's worked a nice big dent into the body of the lamda sensor... Tried adjusting the position of the decat pipe by rotating it a...