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im also need the answer , i got a decat pipe on mine and my sensor is still screwed into it and plugged in but if your decat hasn't got the threded hole for the sensor then i would either drill it and tap and die it or keep it plugged in but tie it up out of the way but if the car starts playing up then you will have to fit it somehow.

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โˆ™ 2011-09-13 00:38:09
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Q: Does the decat pipe need to have the oxygen sensor fitted for a Subaru Impreza?
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