EOS Exhaust J Style O2 Performance Oxygen Sensors Restrictor

The exhaust oxygen (O2) sensor is a device that measures the amount of oxygen in the exhaust gases produced by an internal combustion engine. The O2 sensor is positioned in the exhaust system, typically before the catalytic converter, and sends signals to the engine control module (ECM) to regulate the air-fuel mixture.The air-fuel mixture in a gasoline engine should ideally be a stoichiometric ratio of 14.7 parts air to 1 part fuel, which provides the best balance of performance, fuel efficiency, and emissions. The O2 sensor measures the residual oxygen in the exhaust gases and sends signals to the ECM to adjust the air-fuel mixture. This helps to ensure that the engine is operating at optimal performance, efficiency, and emissions.If the O2 sensor fails or is damaged, it can cause the engine to run rich or lean, leading to poor performance, increased fuel consumption, and increased emissions. It is important to have a functioning O2 sensor for the proper operation of the engine and t