Auto Exhaust Flexible Pipe Stainless steel Exhaust Systems Flex

A flex pipe, also sometimes known as a flex coupling, is a section of bellowed steel that is designed to absorb vibrations from the engine and from the motion of the vehicle, which prevents other components from being broken or cracked. Some parts of the exhaust system such as exhaust manifolds, (which are often made of cast iron) are brittle and easily break. Flex pipes prevent these components from being exposed to excessive stress.