Cometic's .089 in MLS cylinder head gasket for BMW M54B25/M54B30 is made for an 85mm bore to provide durable sealing on rebuilt or performance engines without sealants. The multi-layer stainless design uses embossed outer faces coated in Viton to resist heat to 250°C (482°F) and corrosion. An uncoated stainless shim layer can be varied for thickness while the embossed layers improve load distribution, lower clamp load and handle mixed metal mating surfaces.
Cometic Gasket BMW M54B25/M54B30 .089in MLS Cylinder Head Gasket - 85mm Bore