The Audi 90 catalytic converter is a component in the exhaust system, designed to reduce the toxins emitted by your vehicle. There are a number of waste products that are created by the engine as it uses the combustion process to produce the power necessary to run your vehicle, some of them chemicals that are poisonous to humans and harmful to the environment, contributing to the production of smog and acid rain. These waste products are emitted from the exhaust valves of the engine, contained in a burst of hot exhaust gasses that are collected by the exhaust manifold to be directed away from the engine and into the exhaust system.

As these fumes travel through the exhaust system, they are channeled through the 90 catalytic converter, which is designed to sift out a large portion of the hazardous chemical content of the vehicle emissions. This task is accomplished with the use of a ceramic honeycomb style structure within the Audi 90 catalytic converter.

This structure is coated with several catalyst metals that create a chemical reaction with the molecules of these toxic chemicals as they enter the 90 catalytic converter, causing some of these molecules to incinerate and others to become trapped inside. This greatly reduces the harmful emissions passing out into the air we breathe from the tail pipe of your vehicle, lessening its impact on the environment. We carry a selection of quality replacements for your Audi 90 catalytic converter in our online catalog at very affordable prices.Our secure site will make ordering your 90 catalytic converter safe and easy, or our toll-free phone line is just as convenient, with courteous customer service assistants to help you.