BladeRunner A356-T6 Aluminum Intake Manifold (46-10011) by aFe. Multiple Directional Vane Technology, 5 Auxiliary Ports. Diameter: 3in. HP Gain: +17 hp. TQ Gain: +50 lbs. x ft.. Increase airflow to your engine by up to 32Percent and gain up to 17 horsepower and 50 pound feet of torque just by changing your intake manifold. The aFe BladeRunner intake manifold uses MDV technology to create multiple smooth air paths, reducing resistance and restriction. Overall airflow is improved over stock, resulting in greater engine output.