A little review of your high school chemistry lessons can help you appreciate how essential the Isuzu catalytic converter is for your exhaust system. Without the catalytic converter, your sporty Isuzu would be emitting huge clouds of hydrocarbons and other harmful pollutants into the environment. First... do you remember the element table? The catalytic converter relies on these metals to help break down the pollutants: platinum, palladium and rhodium. These are included in the ceramic core of the catalytic converter, where the conversion occurs at high temperatures. When the exhaust gas blows through the core, two processes occur. Catalyst oxidation occurs when the hydrocarbons and carbon monoxide is mixed with oxygen. The presence of the palladium and platinum elements acts as a catalyst to convert the pollutants into carbon dioxide and water. In the reduction catalyst reaction, harmless nitrogen is formed when the trace elements of platinum and rhodium separate the nitrogen atoms from the oxygen atoms. After that splitting occurs, the nitrogen atoms then bond together to form their own nitrogen molecules. Finally, the residue is monitored by an oxygen sensor as it blows to the exhaust pipe. The data is sent to the engine's ECU, which will adjust the air/fuel mixture in the engine to maintain a proper level for combustion, as well as keep enough oxygen in the catalytic converter. Keep your Isuzu's exhaust system running efficiently by replacing your part with one of our high-quality catalytic converters.