Weld-On O2 Bungs for EFI Fuel Injection Conversion, Pair
66-77 Ford Bronco
These weld-on oxygen sensor bungs are designed to weld into your header or exhaust system to provide a threaded install point for the O2 sensors when installing electronic fuel injection in your early Bronco. These 02 bungs are sold as a pair (enough for one Bronco). When installing these bungs, keep in mind that the O2 sensors should be mounted as close to the engine head as possible but past the point where the exhaust tubes collect.