40 Series Muffler 2.50in Center In 2.5 Offset Out

The FLOWMASTER 40 Series Muffler 2.50in Center In 2.5 Offset Out is a universal performance exhaust silencer engineered to reduce engine noise while maintaining smooth exhaust flow. With a center inlet and offset outlet configuration, this muffler accommodates a wide range of vehicle exhaust system layouts, making it a versatile choice for street machines, muscle cars, and performance applications where noise reduction matters without sacrificing flow characteristics.

Built from steel with a durable black paint finish, this 40 Series muffler measures 19 inches in length with an oval body design (13 x 9.5 x 4 inches). The 2.5-inch inlet and outlet ports accept standard tubing sizes commonly found in performance exhaust systems, ensuring straightforward installation and compatibility. The offset outlet design provides flexibility in exhaust routing, accommodating vehicles where a center exit is impractical. Weighing 10.16 lbs, the muffler integrates into most systems without excessive weight penalty while delivering the acoustic signature FLOWMASTER's 40 Series is known for—balanced tone without excessive drone.

This universal muffler serves enthusiasts building custom exhaust systems, restoring classic vehicles, or upgrading factory setups. The center-to-offset port arrangement is particularly useful for unconventional frame layouts, tight engine bays, or situations where routing dictates an angled outlet. Street drivers prioritize the 40 Series line for its blend of sound character and everyday drivability. Technicians and fabricators select this model when standard center-exit options won't fit the application, appreciating the proven internal design that minimizes back pressure while controlling volume.

FLOWMASTER's 40 Series represents the company's entry-level performance muffler line, offering an economical foundation for custom exhaust builds. The offset outlet variant expands compatibility beyond standard center-exit configurations, making it applicable to a broader range of vehicle platforms and fabrication scenarios. Installation requires basic exhaust work and welding or clamp-on connection methods depending on your system design.