MLX Gasket (Multi-Layer-Xtreme) features an extra stopper fold-over layer providing a torque limiting surface that prevents yielding of the combustion seal. Proprietary high-temperature coatings along with embossments provide a micro seal for fluids against the head and block surface. MLX head gaskets are essential for all Milwaukee 8 applications using a Turbo, high compression, nitrous or any power adder modifications. Require no special machining and are installed like a regular MLS head gasket. High-quality products for long-term reliability. Fit air/oil cooled and Twin cooled heads. Sold in pairs for popular bores and thicknesses. Made in the USA.