The Walker Exhaust 21904 is a high-quality exhaust muffler designed to enhance the performance and longevity of your vehicle's exhaust system. Constructed entirely from corrosion-resistant stainless steel, this muffler offers superior durability compared to traditional aluminized mufflers. Its internal drainage system effectively reduces moisture accumulation, mitigating the risk of corrosion and extending the service life of the component. The muffler's design includes internal partitions and mechanically joined tubes that accommodate expansion and contraction due to temperature fluctuations, minimizing distortion and ensuring structural integrity. Spun-locked heads and OE-style spot welds further contribute to its stability and longevity. For optimal acoustic performance, the muffler features OE-style louvered tubes that lower noise levels, while OE-style domed heads help reduce radiated noise, delivering a premium factory-style sound quality. The muffler's dimensions are 13 inches in length, 9 inches in width, and 7 inches in height, with an overall length of 23 inches. It has a 2.75-inch outlet diameter and an inlet offset of 1.625 inches, making it suitable for various vehicle applications. The inlet type is a 2-bolt welded flange, and the outlet type is a tip. Designed for easy installation, the muffler comes with OE-style hangers, brackets, and pipe routings, eliminating the need for specialized fabrication or welding. This direct-fit bolt-on replacement solution ensures a hassle-free installation process. The Walker Exhaust 21904 muffler is backed by a limited lifetime warranty, reflecting the manufacturer's confidence in its quality and durability.