The benefits of catalytic converters run the gamut for drivers and nature too, The first is that they greatly cut emissions of the harmful gases -- carbon monoxide and nitrogen oxides are two big polluters emitted by vehicles -- that worsen air quality and affect public health. While catalytic converters stop hydrocarbons from escaping by igniting those that were not burned in the engine, which also results in extinguishing up to 90% of volatile organic compounds that are known to cause smog and do nothing but cloud up our lives even more. These devices also benefit the vehicle in general i.e. a better combustion process that can mean better economy and performance. This means that for prospective customers, one gets an environmentally friendly car as well as a much cheaper fuel and maintenance costs over time.