The Walker Exhaust 53966 Quiet-Flow SS Exhaust Muffler Assembly is engineered to provide superior performance and durability for the 2007-2014 Volvo XC90. This assembly features a 100% stainless-steel construction, offering three times the lifespan compared to traditional aluminized mufflers. The internal drainage system effectively reduces moisture accumulation, mitigating corrosion and extending the component's service life. Designed as a direct-fit replacement, it incorporates OE-style hangers, brackets, and pipe routings, facilitating straightforward installation without the need for specialized fabrication or welding. The assembly's internal partitions and mechanically joined tubes accommodate thermal expansion and contraction, minimizing distortion and enhancing structural integrity. Additionally, the OE-style louvered tubes and domed heads deliver a premium, factory-style sound quality, effectively reducing noise levels and radiated noise. Acoustic and flow testing validate the assembly's design, ensuring reliable performance and consistent sound quality. This muffler assembly is backed by Walker's limited lifetime warranty and exclusive 90-Day Safe and Sound Guarantee, underscoring its commitment to quality and customer satisfaction.