The 2005-2009 Toyota 4Runner/Lexus GX470 4.7L V8 Catalytic Converter is a component of the exhaust system that helps reduce harmful emissions. The left and right catalytic converters are located on either side of the engine, and they work by converting toxic pollutants into less harmful gases through a chemical reaction.
The catalytic converters are constructed with a honeycomb-like structure made of ceramic or metal substrates that are coated with a catalyst. The catalyst typically consists of precious metals such as platinum, palladium, and rhodium. When exhaust gases pass through the honeycomb structure, the catalyst reacts with the pollutants, breaking them down into carbon dioxide, water vapor, and nitrogen.