When you're towing or hauling heavy loads with your awesome 2003-2004 Ram 5.9L Cummins, coming to a fast, safe stop is a lot easier said than done, even if your truck is equipped with an OEM exhaust brake. We here at Alligator Performance carry a variety of Cummins Ram exhaust brake options that will help your tough Ram build stop on a dime, no matter how loaded down it happens to be. These aftermarket Ram exhaust brakes are far more powerful than the stock brakes alone, and even pack more power than the factory-optional exhaust brakes. These kits are a crucial part of any dedicated towing rig, and will keep you and your Ram safer when hauling heavy.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.