4 Facts About Exhaust Aftertreatment Systems Exhaust aftertreatment systems are a major part of modern vehicles, but what exactly are they and what do they do? These systems are incredibly important, and when you learn some key facts about exhaust aftertreatment systems, you can better appreciate them. These systems benefit you as a driver and help contribute to a greener planet. Emission Control Systems Exhaust aftertreatment systems, also known as “emissions control systems,” play a cru...
