NAMZ O2 Sensor Bung Reducers 18mm to 12mm (Pair)

These NAMZ O2 sensor bung reducers are made from solid steel, giving you a reliable way to adapt your exhaust system. They're designed to take an 18mm O2 sensor bung and effectively turn it into a 12mm fitting. This is super handy when you're working with an older exhaust that has the larger 18mm sensor ports but you need to install a newer, smaller 12mm O2 sensor.

You get a pair of these reducers, so you can handle both sensors if your system requires it. They thread right into your existing bung, creating a secure mount for the smaller sensor. It’s a straightforward solution that saves you from having to weld or modify your exhaust just to get the right sensor in place.