aFe BladeRunner 409 SS Exhaust Manifold | Dodge Ram 03-07 L6-5.9L (46-40011)aFe Exhaust Manifold Part #: 46 40011 Overview The aFe BladeRunner 409 Stainless Steel Exhaust Manifold is engineered specifically for Dodge Ram diesel trucks equipped with the 5. 9L Cummins engine from 2003 to 2007. Designed to replace the factory exhaust manifold, this high quality component addresses common issues such as cracking and thermal fatigue that can compromise engine performance and reliability over time. Crafted from durable 409