ANSA Automotive has introduced a new Silverline™ Muffler Delete Pipe, which replaces the muffler in the original equipment exhaust system. By removing the stock muffler a reduction in back pressure and a deeper exhaust tone is achieved. Manufactured from mirror finished 409 stainless steel, this delete pipe fits all 2004 - 2007 Dodge Cummins equipped with a 4-inch factory exhaust.