The Kenworth 6 O.D Inch Reduced to 5 Inch Right Side Chrome Replacement Pipe is a practical solution for newer Aerocabs with DUAL Round Catalyst/Mufflers Mounted Underneath. This chrome replacement pipe, sold individually, features a 6-inch to 5-inch reduction on the right side. It fits a 45-inch battery box and is compatible with most Kenworth makes and models. With its high-quality construction and perfect fit, this replacement pipe offers a reliable and efficient solution for your truck's exhaust system needs.