The Walker Exhaust 21541 Quiet-Flow SS Exhaust Muffler is engineered to provide a direct-fit replacement for various Ford and Lincoln models, including the 2004-2008 Ford F-150 and the 2007-2008 Lincoln Mark LT. This muffler features a 32-inch overall length, 9-inch width, and 7-inch height, with a 2.5-inch inlet and outlet diameter, ensuring compatibility with the specified vehicles. Constructed entirely from corrosion-resistant stainless steel, it offers superior durability compared to traditional aluminized mufflers. The internal drainage system effectively reduces moisture accumulation, mitigating potential corrosion over time. Designed for easy installation, the muffler includes OE-style hangers, brackets, and pipe routings, eliminating the need for specialized fabrication or welding. Its internal partitions and mechanically joined tubes accommodate temperature-induced expansion and contraction, minimizing distortion and enhancing structural integrity. The spun-locked heads and OE-style spot welds further contribute to its stability and extended service life. Acoustic performance is optimized through OE-style louvered tubes that lower noise levels, while domed heads help reduce radiated noise, delivering a premium factory-style sound quality. The muffler has undergone rigorous acoustic and flow testing to ensure it meets OE standards for sound and performance. By choosing the Walker Exhaust 21541 Quiet-Flow SS Exhaust Muffler, fleet operators can expect a reliable, long-lasting solution that maintains vehicle performance and minimizes maintenance downtime.