This exhaust flange gasket is a great addition to your vehicle's exhaust system. It is made of compressed fiber laminate and has a size of 2.5 inches in diameter. This particular gasket is designed for use with Mr. Gasket 3 Hole 2-1/2" Header Collector Exhaust Flange Gaskets with part number MRG76C. This gasket is perfect for placement on your vehicle's exhaust system.