Sold as singles or choose quantity 2 for twin cylinders.
These are required when deciding to remove your stock 18mm O2 sensors. This would be in a situation where Rottweiler Performance Fueling Dongles or a Powercommander V is being used and the stock narrow band O2's have been rendered unused. Stainless Steel provides better corrosion properties than Mild Steel and is a more affordable option to our Titanium O2 Bung Plugs.
Bikes that use 18mm O2 plugs: