The Walker 56019 Quiet-Flow Stainless Steel Oval Aluminized Exhaust Muffler and Pipe Assembly is engineered to provide a direct-fit, OE-style replacement for the 1998-2000 Nissan Frontier 4WD models. This assembly is designed to address common operational challenges faced by fleet operators, such as exhaust system durability and noise control. Constructed with 100% stainless steel, the muffler offers superior corrosion resistance, extending its service life compared to traditional aluminized mufflers. The internal drainage system effectively reduces moisture accumulation, mitigating potential rust and enhancing longevity. The assembly features a three-tube design that delivers a quiet tone, and OE-style louvered tubes and domed heads contribute to a premium, factory-like sound quality. The inlet and outlet configurations are offset, with a 2-inch inlet and outlet diameter, ensuring compatibility with the specified vehicle models. The overall length of the assembly is 59.75 inches, with a body height of 7 inches, width of 9 inches, and length of 19 inches. This precise engineering ensures a seamless fit and optimal performance. By integrating the Walker 56019 assembly into your fleet's maintenance program, you can expect reduced downtime due to exhaust system failures and enhanced driver comfort through noise reduction. The durable construction and design features of this assembly provide measurable value by addressing common exhaust system issues, thereby improving operational efficiency and reducing maintenance costs.