What are the components of an emissions system?

An emissions system typically includes several key components: the exhaust manifold, which collects exhaust gases from the engine; the catalytic converter, which reduces harmful emissions through chemical reactions; the oxygen sensors, which monitor the oxygen levels in the exhaust to optimize fuel efficiency; and the muffler, which reduces noise produced by the engine's exhaust. Additionally, modern systems may incorporate components like particulate filters and various sensors to ensure compliance with environmental regulations. Together, these components work to minimize pollutants released into the atmosphere.