Discover Toyota 4 Runner Muffler replacement. Browse Best Toyota 4 Runner tail muffler & Toyota 4 Runner Exhaust and muffler replacement. Maintaining the muffler on your Toyota 4Runner not only ensures a quiet ride but also prevents exhaust system issues. To extend its lifespan, regularly inspect for rust or holes, and listen for unusual noises, signaling a need for replacement. When choosing a new muffler, consider options like chambered, turbo, or straight-through designs, each offering distinct sound and performance characteristics. Opt for high-quality materials like stainless steel for durability. For seamless installation, follow manufacturer guidelines or opt for professional fitting to enhance your 4Runner's functionality and maintain its value.