The Cometic MLX head gasket for BMW N63/S63 90mm bore (.032in) uses HP shim technology to increase clamp load around the combustion chamber and improve sealability. MLX construction includes an integrated stopper layer for combustion sealing and embossed outer layers coated with Viton. It’s specified for the S63/N63 90mm application and aims to enhance clamping without increasing bore distortion.
Cometic BMW S63/N63 90mm Bore .032in MLX Head Gasket