O2 Sensor Fitting Inserts Only

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Tunable o2 Sensor Kit Must be used with the Tunable o2 Sensor Kit Bung for a complete kit. The O2 fittings and C-clip help complete your build. Made of 304 Stainless Steel with M18 x 1.5 thread size. Must be used with the O2 Sensor Extension for a complete kit. Show more