Flowmaster 40 Series Delta Flow Center/Dual Out Oval Muffler; 3-Inch Inlet/2.50-Inch Outlet (Universal; Some Adaptation May Be Required)

Performance Muffler. The Flowmaster 40 Series Delta Flow Center/Dual Out Oval Muffler, featuring a 3-inch inlet and 2.50-inch outlet, enhances exhaust scavenging to improve engine efficiency while reducing interior cabin noise. Designed for street, strip, and off-road use, this muffler produces an aggressive exterior sound that complements muscle cars, street rods, trucks, and SUVs with 4- or 6-cylinder engines. Its balanced tone and performance benefits make it a preferred choice for enthusiasts seeking both power and sound control.

Construction and Appearance. Made from durable 16 gauge aluminized steel, this muffler is fully MIG welded for long-lasting strength and corrosion resistance. It is finished with high-temperature black paint to withstand harsh exhaust temperatures while providing a sleek, aggressive appearance. The oval body shape supports optimal flow characteristics in conjunction with Delta Flow technology.

Installation. Installation may require some adaptation, as this universal muffler ships without hangers or clamps. Slip-fit connections are provided for both the inlet and dual outlet pipes, allowing straightforward attachment with minimal modifications. Depending on the vehicle’s existing exhaust setup, drilling or welding may be necessary.

Application. Suitable for a wide variety of vehicles, this muffler fits universal applications but may require some adaptation for specific installations. It is legal for use on emissions-controlled, uncontrolled, and racing vehicles, complying with applicable emissions regulations.

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