We buy all types of Automotive Catalytic Converters, Stainless Steel Foil Converters, 02 Sensors, and Loose Automotive Catalyst. The value in catalytic converters come from the rhodium, palladium and platinum that are found inside each catalytic converter, collectively referred to as the Platinum-Metals Group (PMGs). These precious metals convert harmful exhaust gasses such as carbon monoxide and nitrous oxide into water, nitrogen gas, and carbon dioxide.