The MagnaFlow 15397 is a stainless steel tailpipe section for the 5.9L Cummins turbo-diesel in Dodge Ram 2500 and 3500 trucks. The manufacturer calls it a universal component, mandrel bent on CNC equipment and built from corrosion-resistant stainless, and it exits single passenger side rear. Its 4-inch diameter matches the stock layout on newer trucks, since owners on user forums note that 04.5 and later trucks run a 4-inch turbo-back path. Over a mild-steel replacement, the value is in the metal and the bends: the manufacturer cites stainless construction, a smooth mandrel-bent interior, and production in the USA, which makes it a sound pick for a rusted stock section or a custom cat-back build.
Fitment deserves a careful look before you order. The manufacturer's compatibility list currently shows 2006 and 2007 Ram 2500 and 3500 models with the L6 5.9L, while other listings cover 2004 through 2007, so details vary and you should confirm your model year and bed with MagnaFlow. The part ships without clamps, so budget for band clamps. Searchers looking for a 04.5-07 Cummins stainless tail pipe, a 5.9 Cummins mandrel bent tailpipe, or a 2007 Ram 2500 4-inch tail section will want to verify these details first. Owners on user forums say a tail section that drops or twists is usually a clamp or hanger problem, and one owner swapped the factory rubber hanger bushings to stop the rubbing.
No. The manufacturer lists clamps as not included, so plan to buy band clamps separately before you start the job.
The manufacturer describes the 15397 as a universal component for the truck's exhaust system, so it has to be matched to your existing piping. Confirm your model year and cab and bed configuration with MagnaFlow before ordering.
The manufacturer states that professional installation is highly recommended for this product.
Plan on working the exhaust from the rear forward so you can support the system while you unhook the factory hangers. MagnaFlow's general install sheets for its exhaust systems advise spraying penetrating lubricant on fasteners and hangers well before removal. Keep the new pipe clear of body panels, since the manufacturer's sheets call for at least half an inch of clearance to prevent heat damage. Tighten all fasteners front to rear once the position is set, and retighten the band clamps after the first 25 to 50 miles of driving. Because the clamps are not included, get them before you start; owners on user forums point to loose clamps as the most common reason a tail pipe moves or sags.
