We have a new size available in our range of O2 Sensor port Plugs. Along with the M18 x 1.5 version, which we have made and stocked for many years now; we have added an M14 x 1.5 version to suit the newer varieties of O2 sensors being made available on the market today.

Part numbers:

806-M14-S....M14 x 1.5 Plug

806-M18-S....M18 x 1.5 Plug

Speedflow also have the weld bungs for the O2 Sensors, make sure to check out the previous story.