The spiral wound exhaust muffler gasket is a type of gasket commonly used in automotive exhaust systems to create a seal between the muffler and the exhaust pipe.

The gasket is made of a metal spiral wound with a filler material, typically graphite or ceramic fiber, which provides heat resistance and sealing properties. The spiral wound design allows the gasket to conform to the irregular surfaces of the muffler and exhaust pipe, ensuring a tight seal and preventing exhaust leaks.

When the exhaust system is in operation, hot exhaust gases and air are forced through the muffler and exhaust pipe, creating pressure and vibration. The spiral wound exhaust muffler gasket helps to dampen these vibrations, reducing noise and preventing damage to the exhaust system.