MBRP 2004.5-2005 Dodge Cummins 600/610 (fits to stock only) High-Flow Muffler Assembly T409

Our high flow performance exhaust systems maximize exhaust flow so your engine keeps its cool with lower exhaust temperatures. Your reward will be greater fuel efficiency; more torque; more horsepower; and last but not least a sound that is pure MBRP. High Flow Muffler Assembly; 4 in.; Fits To Stock Only; T409 Stainless Steel;