Today, the amount of harmful emissions that your Toyota can allow to pass into the environment is strictly governed by law, and these laws are rigorously enforced. The main device used to eliminate excess pollutants is the Toyota catalytic converter. When the fuel is burned inside the engine, the process is never completely finished, and some of the fuel escapes into the exhaust. When this exhaust reaches the Toyota catalytic converter, a small amount of platinum within it sets off a chain reaction. Soon the majority of the fuel is removed from the exhaust, though the energy it has produced is largely wasted. An oxygen sensor is installed after the Toyota catalytic converter, to monitor the efficiency of the process. If there is too much oxygen left in the exhaust, it means that there are too many pollutants, because the combustion process needs oxygen to complete. When the computer detects this problem, it will alert the driver to the failure of the Toyota catalytic converter with a warning light on the dash. The most common reason for the Toyota catalytic converter to fail is from corrosion. Because of the heat, salt, and other chemicals it encounters, it is more likely than other parts of the exhaust to rust through. When you need a replacement, you will easily find the correct one for your vehicle in our large online catalog. Our Toyota catalytic converter meets all of the specifications of the original part, so it will be an easy direct-fit replacement. It is made of superior materials and has a full warranty. You can have your new Toyota catalytic converter installed very soon with our efficient shipping system.