BD Diesel S400 Full Marmon Downpipe Kit (1045240) for 2003-2009 Cummins 5.9L / 6.7L

The BD Diesel S400 Full Marmon Downpipe Kit (1045240) is a high-performance exhaust upgrade designed specifically for 2003–2009 Dodge Ram trucks equipped with the Cummins 5.9L or 6.7L engine and an S400 turbocharger. This kit features a full Marmon flange connection for a secure, leak-free fit and improved exhaust flow, which enhances turbo efficiency and reduces backpressure. Constructed from durable, high-quality materials, the downpipe is engineered to withstand extreme temperatures and heavy-duty use, making it ideal for performance enthusiasts and heavy haulers alike. BD Diesel’s precision design ensures easy installation and compatibility with aftermarket turbo setups, providing a reliable and efficient solution for maximizing your Cummins engine’s potential.