Mr. Gasket Ultra Seal Premium Exhaust Gasket has the ability to conform to warped flanges for a tight seal. They have superior tensile strength to resist cracking. The graphite facing withstands heat and allows easy removal. The height of this gasket is 1.360" and its width 1.300". It incorporates a graphite-impregnated facing and a steel expanded metal core that reinforce and increase the tensile strength. It is designed and constructed to improve the sealing of exhaust header flanges. This gives the gaskets the ability to conform to warped flanges giving them better sealing capabilities without deteriorating or cracking under the excessive heat and pressure that is common in the exhaust system.