Marine Exhaust Gasket, 3" ID X 5" OD with (4) Bolt Holes On A 4-1/8" Bolt Circle. Remflex's unique flexible graphite material has been proven for more than 30 years in industrial applications, where temperatures routinely exceed 2,000 degrees day after day, week after week, year ...Marine Exhaust Gasket, 3" ID X 5" OD with (4) Bolt Holes On A 4-1/8" Bolt Circle. Remflex's unique flexible graphite material has been proven for more than 30 years in industrial applications, where temperatures routinely exceed 2,000 degrees day after day, week after week, year after year.
Now, they are bringing this technology to enthusiasts of all kinds to eliminate exhaust leaks for good. Whether you have an old pick-up that needs a manifold gasket or a race car with custom-built headers, you can be assured that Remflex exhaust gaskets will work properly every time.