Exhaust Headers for Dodge Durango Dakota Ram (1996-2003) 3.9L EngineHigh Flow Stainless Exhaust Headers for 1996 2003 Dodge Dakota, Ram, Durango (Magnum V6) Replaces restrictive factory cast iron manifolds with mandrel bent T304 stainless steel headers and a matching Y pipe to optimize exhaust scavenging and reduce parasitic power loss. The Stock Dakota, Ram, Durango Manifold Bottleneck The factory cast iron exhaust manifolds on the 3. 9L Magnum V6 are designed for compact packaging rather than flow efficiency. These