That cloud of exhaust coming out of your tailpipe carries fewer and less toxic pollutants than it could, all thanks to your catalytic converter. Catalytic converters force a chemical conversion in car emissions by adding and removing oxygen through surface area contact. Carbon monoxide breaks down into simple water and carbon dioxide, still a pollutant but much less dangerous, and nitrogen oxide pollution becomes oxygen and nitrogen gases. What you notice is a cleaner burning smell to your exhaust. Efficient catalytic converters are important components in controlling safer auto emissions, and at MicksGarage.com, you can find the right one for your car