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
To Market, to Market (M*A*S*H) To Market, to Market (M*A*S*H) "To Market, to Market" is the second episode of "M*A*S*H". It was first aired on September 24, 1972 and repeated on April 29, 1973. Like many other "M*A*S*H" episodes, this one parodies army bureaucracy. Thieves and blackmarketeers hold up a truck load of medical supplies for the 4077, thus rendering them in desperate need of Hydrocortisone. In retaliation, Hawkeye and Trapper meet with a notorious black marketeer, hoping to get some replacements. When they realize they have nothing reasonable to trade with him, they go to drastic measures to get what they need. While operating