Cometic 03+ Subaru EJ255/EJ257 101mm .027 inch MLS Head Gasket

This is a Cometic Multi-Layer Steel (MLS) head gasket designed for Subaru EJ255 and EJ257 engines, commonly found in models like the Impreza, Forester, and Legacy from 2004 onwards. It features a 101mm bore and a compressed thickness of .027 inches, making it a solid choice for rebuilding or replacing your engine's cylinder head seal.

Cometic builds these gaskets with multiple layers of stainless steel for strength and corrosion resistance. The outer layers are coated with Viton, a heat-resistant rubber material that handles tough sealing environments and varying surface finishes without needing additional sealants. The center layer is stainless steel, allowing Cometic to vary the thickness to meet different engine build needs. This construction helps these gaskets withstand the forces created when mating different block and head materials, like aluminum to cast iron.