The Flash Point High Temperature .21 Exhaust Gaskets can be used where the tuned pipe manifold attaches to the rear of the engine. This gasket can also be used for tuned pipe exhaust systems to seal the connection between the pipe and the manifold.
This is a very strong exhaust gasket made with Superior silicone materials. it lasts longer than any other gasket that I know and has a really snug fit, I don't think the details say that it's extreme high temp gasket but takes a long time to wear down or crack. it's a solid purchase for your pipe and engine exhaust.
These gaskets I like, they have a tight fit and last a long time, a four pack combo would be nice.