O2 Sensor Bungs

O2 Sensor Bungs: the fitting that gives your wideband a home

An O2 sensor bung is the threaded boss that welds or clamps into your exhaust pipe so an oxygen sensor can thread in and read the gas stream. Add a wideband, relocate a factory sensor after a header swap, or plumb a bung into a custom downpipe and you need one of these. Our o2 sensor bungs come in weld-in styles for pipe fabrication and no-weld clamp-on mounts for anyone who wants to skip the welder. The threads are cut for standard oxygen sensors, and the saddle or coped ends are shaped to sit clean against round tubing.

What we stock

There are 12 products in this category from 3 brands: Stainless Bros (6), Ticon (4) and AEM (2). Prices currently run from $25 to $87 for what is in stock right now, not a locked-in promise. Stainless Bros builds M18x1.5 bungs including a version with a built-in heat sink and a saddle-type bung. Ticon offers titanium units like the coped-end twin pack for 2.75in to 5in tubing and a 3/8in NPT titanium bung. AEM covers the no-weld route with mounts for 2.25 to 2.5 inch pipe and 2.75 to 3 inch pipe.

How to choose

Start with your install method. If you can weld or have a fabricator, a coped or saddle bung sits flush and is the cheapest, most permanent route. If you can't weld, an AEM no-weld mount clamps on and is sized by pipe diameter, so measure your tube before ordering. Then check the thread: M18x1.5 suits most oxygen sensors, while the Ticon 3/8in NPT unit is for setups calling for pipe thread. Titanium bungs pair naturally with titanium exhaust work; stainless is the standard for stainless piping. The heat-sink Stainless Bros bung moves the sensor further from the heat, which matters on hard-run pipes.

What else you need with it

A bung is one piece of an exhaust project. If you're fabricating, look at exhaust pipes and exhaust flanges to complete the run. Downstream of the sensor you may be pairing this with catalytic converters, mufflers or a full cat-back exhaust. Finishing a build often means an axle-back system and a tidy tip. Browse the whole Exhaust section to see how the bung fits your plan.

Fitment and ordering

None of these bungs are listed with vehicle fitment data, so choose by pipe diameter and thread rather than by make or model. Not sure which one matches your tubing? Call our team for fitment help at 813-535-5801 or use the contact page. Every order ships with free shipping, and Affirm and Katapult financing is available if you're building a larger exhaust project.

O2 Sensor Bungs: the fitting that gives your wideband a home

An O2 sensor bung is the threaded boss that welds or clamps into your exhaust pipe so an oxygen sensor can thread in and read the gas stream. Add a wideband, relocate a factory sensor after a header swap, or plumb a bung into a custom downpipe and you need one of these. Our o2 sensor bungs come in weld-in styles for pipe fabrication and no-weld clamp-on mounts for anyone who wants to skip the welder. The threads are cut for standard oxygen sensors, and the saddle or coped ends are shaped to sit clean against round tubing.

What we stock

There are 12 products in this category from 3 brands: Stainless Bros (6), Ticon (4) and AEM (2). Prices currently run from $25 to $87 for what is in stock right now, not a locked-in promise. Stainless Bros builds M18x1.5 bungs including a version with a built-in heat sink and a saddle-type bung. Ticon offers titanium units like the coped-end twin pack for 2.75in to 5in tubing and a 3/8in NPT titanium bung. AEM covers the no-weld route with mounts for 2.25 to 2.5 inch pipe and 2.75 to 3 inch pipe.

How to choose

Start with your install method. If you can weld or have a fabricator, a coped or saddle bung sits flush and is the cheapest, most permanent route. If you can't weld, an AEM no-weld mount clamps on and is sized by pipe diameter, so measure your tube before ordering. Then check the thread: M18x1.5 suits most oxygen sensors, while the Ticon 3/8in NPT unit is for setups calling for pipe thread. Titanium bungs pair naturally with titanium exhaust work; stainless is the standard for stainless piping. The heat-sink Stainless Bros bung moves the sensor further from the heat, which matters on hard-run pipes.

What else you need with it

A bung is one piece of an exhaust project. If you're fabricating, look at exhaust pipes and exhaust flanges to complete the run. Downstream of the sensor you may be pairing this with catalytic converters, mufflers or a full cat-back exhaust. Finishing a build often means an axle-back system and a tidy tip. Browse the whole Exhaust section to see how the bung fits your plan.

Fitment and ordering

None of these bungs are listed with vehicle fitment data, so choose by pipe diameter and thread rather than by make or model. Not sure which one matches your tubing? Call our team for fitment help at 813-535-5801 or use the contact page. Every order ships with free shipping, and Affirm and Katapult financing is available if you're building a larger exhaust project.