AEM Mild Steel O2 Sensor Bung - 30-4005

About Product About the Brand AEM Mild Steel O2 Sensor BungAEM Mild Steel O2 Sensor Bung. AEM - 02 Sensor Bung. Oxygen Sensor Bung. O2 Sensor Bung All the components you need to do some custom fabrication. About AEM AEM was founded in 1987 by John Concialdi (J.C.) and Bob Sullivan as a tuning performance shop. The shop focused on vintage automobiles and the latest trends in street racing modified imports. With it's location in Compton California, AEM was embedded in the tuner market from the very beginning. It was a matter of being in the right place, at the right time, with the right technical knowhow. Between J.C. and Sullivan, AEM had two important advantages. Technical engine knowledge and massive creativity fueled by an unbridled passion to make things go faster. When it came to understanding air flow through an engine, few had more experience than Concialdi. He managed the R&D department for Weber Carburetors for North American aftermarket applications the previous 10 ye