DODGE CUMMINS 5.9L L6 (TD) 2003 - 2007 RAM HD 2500 / 3500Key Features: Show quality cast aluminum air intake (Each sand cast intake is specifically tuned and designed to reduce air turbulence) ) Super-flow web nano-fiber dry filter- (high flowing filter) (The nano-fiber webbing catches contaminants on the surface and accelerates air flow) Functional composite air box w/Aluminum skin plate Injection molded air intake plenum Massive built-in 5 ½ velocity stack Stainless steel Pre-filter screen-(Deflects large debris outside the box for added filter protection)