Exhaust gaskets are used to prevent exhaust leakage. Exhaust gas such as CO (Carbon mono-oxide) is extremely poisonous if it enters the vehicle. So, exhaust gaskets should not be compromised with. High quality gaskets can operate in temperatures in excess of 900-degree celcius and can handle fretting caused by thermal and dynamic flange movement. High temperature fiber material, graphite and ceramic are used for their manufacture. These are also made of embossed steel and that too having multiple layers. They may be of different kinds like: flange gaskets or ring gaskets. India, UK, China and Malaysia are the leading manufacturers.