18mm O2 Sensor Bung Angled

The 18mm O2 Sensor Bung Angled by ALLSTAR PERFORMANCE is a precision weld-on exhaust port designed for tuners and engine builders who need to integrate oxygen sensors into custom exhaust systems. This component serves as a mounting point for lambda sensors in high-performance applications, street rods, and race engines where factory sensor bungs are unavailable or impractical. The angled design allows for optimal sensor placement and clearance in tight engine bay configurations while maintaining proper exhaust gas flow measurement.

Engineered from robust steel with a natural finish, the 18mm O2 Sensor Bung Angled features a 45-degree angle that directs the sensor element squarely into the exhaust stream for accurate air-fuel ratio readings. The 1.50-inch female thread specification accepts standard threaded oxygen sensors without adapters, simplifying installation and reducing potential leak points. Its compact footprint (3.45 x 1.05 x 4.55 inches) and lightweight construction (0.09 lbs) make it ideal for weight-conscious builds while the steel construction withstands sustained exhaust temperatures typical in performance tuning scenarios.

This bung is essential for builders integrating aftermarket engine management systems, custom fuel injection, or turbo installations where OEM sensor bungs don't exist. The 45-degree angle prevents turbulence interference and water accumulation that can occur with straight bungs, extending sensor lifespan and improving tuning accuracy. Installation requires proper welding into the exhaust pipe or collector—professional installation is recommended to ensure airtight integrity and accurate sensor readings for closed-loop fuel control systems.