aFe 46-10021 BladeRunner Intake ManifoldaFe 46 10021 BladeRunner Intake Manifold The Bladerunner intake manifold represents the next generation in intake manifold design. The Bladerunner intake manifold uses a unique MDV (Multiple Directional Vane) technology to guide the air through the manifold maximizing air flow. Constructed out of cast A356 T6 aluminum and uses a proprietary internal bolt design to help increase the flow and provide a solid seal void of leaks or deformities. the