View over River Danube, Chain Bridge and Parliament Building at night Cometic BMW S50B30 S52B32 US ONLY 87mm .040 inch MLS Head Gasket M3 Z3 92 99. Comprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0. 040". US Spec Only. Cometic MLS (Multi Layer Steel) Head Gaskets provide maximum sealing performance for todays high output engines and require no sealants. MLS gaskets are ideal for both aluminum heads to aluminum blocks and aluminum heads to cast iron blocks. They can withstand the shearing force created by the two materials. MLS gaskets have increased strength because they are comprised of multiple layers of stainless steel; which also creates the ability to rebound and resist corrosion. The outer layers are embossed and coated on both sides with Viton (a flour elastomer rubber based material that is heat resistant to 250 C 482 F). Viton is designed to meet the demands of a variety of harsh sealing environments, load conditions, and surface finishes. The center or shim layer is uncoated stainless steel, which can be varied to accommodate multiple thickness requirements. This Part Fits: Year Make Model Submodel 1995 1999 BMW M3 Base 1995 BMW M3 Lightweight 1999 2000 BMW Z3 M Coupe 1998 2000 BMW Z3 M Roadster