The Freightliner 21.03 Inch Long And 4 Inch Diameter Replacement Exhaust Pipe is a practical and reliable solution for replacing OE 3564821C3 and OTR3FE036 exhaust pipes. Made in the USA with stainless steel construction, this exhaust pipe offers OEM quality and is directly replaceable with OE parts. It comes with clamps and gaskets included, making installation hassle-free. With dimensions of 21.03 inches long, 4 inches in diameter, 12.44 inches wide, and 6.14 inches tall, it fits most Freightliner makes and models. This exhaust pipe meets EPA 10 exhaust emission norms, ensuring compliance and optimal performance.