O2 Bung Reducer Adapter M18 X 1.50 To M12 X 1.25 Fit For Silvia S13 S14
Item Type: O2 Bung Reducer Adapter. 1 x O2 Bung Reducer Adapter. Convert the M18x1.50 oxygen sensor threaded port to a smaller M12x1.25 thread pitch. Detachable design, it is compact, safe and -free.