The Walker Exhaust 54685 40" Exhaust Resonator and Pipe Assembly is engineered to enhance the performance and durability of your vehicle's exhaust system. Constructed from aluminized steel, this assembly offers superior corrosion resistance, ensuring a longer service life compared to standard aluminized components. Its direct-fit design, featuring precision bends and OE-style routings, hangers, and connectors, facilitates straightforward installation without the need for specialized fabrication or welding. This assembly is specifically designed for the 2003-2005 Lincoln Aviator, accommodating both AWD and RWD drive types. By integrating the Walker Exhaust 54685 assembly, fleet operators can expect improved exhaust flow, reduced maintenance costs, and enhanced vehicle performance, contributing to the overall efficiency and reliability of their operations.