Exhaust system Law in the United States and other countries to not have a catalytic converter. Converters may not be removed from a vehicle that is used only for "off-road" driving in the United States. The main purpose of a catalytic converter on an automobile is to reduce harmful emissions of hydrocarbons, carbon monoxide and nitrogen oxides into the atmosphere. They work by transforming the polluted exhaust components into water and carbon dioxide. Cat-back (also cat back and catback) refers to the portion of the exhaust system from the outlet of the catalytic converter to the final vent to open air. This
Exhaust heat management Exhaust heat management Exhaust heat management is the means of lessening the damaging or performance-robbing effects of internal combustion engine exhaust heat by preventing heat from escaping from the exhaust system and into the engine compartment on automobiles. The fact that exhausts often pass near important components means that ways of protecting these components from heat soak are especially important. As a result, heat management is used as a way of reflecting, dissipating or simply absorbing the heat. Heat shield is also useful to reduce under-bonnet temperatures which therefore reduces intake temperature, subsequently increasing power. There are many different types