Athena uprated headgasketMLS cylinder head gaskets are being fitted by many vehicle manufacturers as origninal equipment. Modern engines imply higher cylinder pressures and higher temperatures. MLS gaskets have been realized in order to cope with these new realities. Athena MLS gaskets feature a combination of 3 to 5 layers made of different types of raw materials. Outer and inner layers combination is designed to perform at higher compession levels than stock configuration.