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 recovery system Chinese regulation, more and more stringent concerning CO2 emissions, exhaust heat recovery sounds like one of the most efficient ways to recover a free energy, since heat is generated in many ways by the engine. Numerous companies develop system based upon a Rankine Cycle: The German company has been one of the first major to study exhaust heat recovery with a Rankine system called Turbosteamer. Honda also develops a module based on a Rankine Cycle to improve overall efficiency of hybrid vehicles, by recovering the heat of the engine and turning it into electricity for the battery pack. In the