Most vehicles need catalytic converters not only so they perform at their best, but also because it's the law. Here's how ...

The front honeycomb piece of a three-way catalytic converter is coated in a precious metal called rhodium. Its role is to break down the NOx into nitrogen and oxygen. Three-way plus air converters ...

More advanced ‘three-way’ catalytic converters are fitted to modern cars and these do the above while also reducing emissions of nitric oxide (NO) and nitrogen dioxide (NO2) which together are ...

This month, three members of a California family pleaded guilty ... Get all the news you need in your inbox each morning. Catalytic converters are your car’s way of filtering out harmful engine ...