2003-2004 Ram 2500/3500 5.9L Cummins Exhaust Manifolds & Up-Pipes

Your Ram's stock exhaust manifold isn't the most efficient thing in the world and can't handle the EGTs that aftermarket mods and tuning can produce. If you're driving a powerful 2003-2004 Ram 5.9L Cummins and looking to make an exhaust manifold swap to a short or long tube, find it here at Alligator Performance. While standard factory-issued manifolds get the job done, we here at Alligator a plethora of manifold options. From 321 tubing exhaust manifolds with improved heat resistance to longer tubed manifolds for improved spooling, the turbo upgrade options offered here are limitless. If you're looking to make that performance jump, be sure to find what you're looking for here at Alligator Performance. Ram Cummins Fitments: 2003, 2004 Ram 5.9L Cummins. Submodel Fitments: Tradesman, Laramie, Laramie Longhorn, Big Horn, Limited, Lone Star, Power Wagon. Some exceptions apply, please see individual product pages for specific fitments.