The Walker Exhaust 55605 Quiet-Flow SS Exhaust Muffler Assembly is engineered to provide superior performance and durability for commercial vehicle fleets. Constructed with 100% corrosion-resistant stainless steel, this muffler offers a lifespan three times longer than typical aluminized alternatives, reducing the frequency of replacements and associated downtime. Its direct-fit design ensures seamless integration with existing exhaust systems, minimizing installation time and labor costs. The internal drainage system effectively reduces moisture accumulation, mitigating the risk of internal corrosion and extending the component's service life. Designed with OE-style louvered tubes and domed heads, the muffler delivers a premium, factory-style sound quality, enhancing the overall driving experience. Acoustic and flow testing validate its performance, ensuring consistent and reliable operation. This product is compatible with various vehicle models, including the 2006-2008 Lexus RX400h and the 2006-2007 Toyota Highlander, making it a versatile choice for fleet maintenance.