AFE Power BladeRunner Ported Ductile Iron Exhaust Manifolds D16 of torque on the dyno

of torque on the dyno and outflowed the factory intake system by 51%

this unit is designed to take all the abuse your hard working truck can put out

42-12035 / 42-12036

46-20170AA

This grid delete spacer is designed to make it easy for you to re-install your factory unit during extreme cold weather for easy start up

AFE Power BladeRunner Ported Ductile Iron Exhaust Manifolds D16 of torque on the dyno46 40094 Machined Ports: These manifolds have both the inlet and the outlet ports machined to match the factory ports. This allows for maximum flow, without compromising the integrity of gasket sealing. Auxiliary Ports: An Exhaust Gas Temperature (EGT) probe port is incorporated into each manifold for easy installation of gauges or testing equipment. There are three additional cast in bosses provided to allow for alternate testing points. Hassle Free