The Cometic head gasket for Subaru EJ255/257 Turbo (102.5mm bore, .051-inch) is an MLS multi-layer steel cylinder head seal built for turbocharged applications. MLS construction uses embossed AMP-coated outer layers paired with an uncoated stainless steel center shim that can be varied for thickness. The embossed faces address harsh sealing environments and surface finishes while the center shim reduces required clamp load and helps distribute sealing pressures to limit bore distortion.
Cometic Subaru EJ255/257 Turbo 102.5mm Bore .051in MLS Head Gasket