Flowmaster 50 Series HD Three-Chamber Muffler 3.5" Offset/Offset - 953558

Product Description

Upgrade your heavy-duty truck with the Flowmaster 50 Series HD Muffler, engineered specifically for large engines and towing rigs. Built with a substantial case size and 4.00-inch internal components, this muffler is crafted to boost horsepower, torque, and engine efficiency while delivering a deep, moderate tone with minimal interior resonance. The three-chamber design is constructed from premium materials (including aluminized steel or optional 409S stainless steel) and is fully MIG-welded for maximum durability even under extreme duty. Ideal for both gasoline and diesel trucks, this muffler is designed to perform in heavy-haul, off-road, and high-output applications. With improved throttle response, better mileage potential, and a robust sound profile that stays refined inside the cab, the 50 Series HD is a smart upgrade for serious truck owners.