The Walker Exhaust 48360 Quiet-Flow SS Exhaust Muffler Assembly is engineered to provide superior performance and durability for commercial vehicles. Constructed with 100% stainless steel, this muffler offers enhanced corrosion resistance compared to traditional aluminized mufflers, ensuring a longer service life. Its direct-fit design facilitates easy installation, aligning with original equipment specifications to minimize downtime and labor costs. The muffler's internal partitions and mechanically joined tubes accommodate thermal expansion and contraction, reducing distortion and maintaining structural integrity over time. Additionally, the OE-style louvered tubes and domed heads deliver a premium, factory-like sound quality, enhancing the driving experience. This assembly is compatible with Nissan Frontier models from 2003 to 2004, both RWD and 4WD variants.