Cometic Head Gasket 90mm .044 Mitsubishi Evo X 2008-2015If you are in the middle of a top-end rebuild, or if you are doing a complete tear-down, then put your head back together with the Cometic Head Gasket. This particular head gasket is 90MM in bore size, and comes with a .044″/1.1mm thickness. This particular head gasket is made from multiple layers of stainless steel, and the outer layers feature a viton rubber coating. No sealants or re-torque are required with this head gasket.