In automotive terms, cat is short for Catalytic Converter - a device to break down the harmful emmisions released into the atmosphere by a car's engine.
Some people hollow out their cats(sometimes referred to as "gutting") or remove them altogether to improve performance, despite the fact that it is illegal in many (but not all) countries.
Some people hollow out their cats(sometimes referred to as "gutting") or remove them altogether to improve performance, despite the fact that it is illegal in many (but not all) countries.
by r31vhead January 18, 2004