Cometic multi-layer steel (MLS) head gasket for Subaru EJ255 (Version 2) and EJ257 (.030" thickness, 101mm bore) uses embossed outer layers with AMP coating and uncoated stainless steel shim layers. The construction helps conform load distribution across the sealing area and requires less clamp load, while the embossed outer layers are coated with Viton to resist harsh sealing environments and surface finishes.
Cometic 03+ Subaru EJ255/04-10 EJ257 101mm .030 inch MLS Head Gasket