Cometic MLX head gasket for BMW N54B30 engines (applications like 135i, 335i, X6, Z4) is an .052-inch MLX multi-layer gasket with an 85mm bore. MLX units use HP shim technology to increase clamp load around the combustion chamber and include an integrated stopper layer for combustion sealing. Outer layers are embossed and coated with Viton to improve sealing in demanding conditions.
Cometic BMW 135i/335i/X6/Z4 N54B30 85mm Bore .052in MLX Head Gasket