Description
Overview
The Flowmaster Super 40 Series Chambered Muffler brings together aggressive street presence and real performance in one durable package. Built around Flowmaster’s proven Delta Flow® technology, the Super 40 uses a larger case profile to deliver the best of both worlds: a deep, powerful exhaust note paired with the flow benefits and reduced interior resonance that Delta Flow® is known for. If you want your street or strip build to sound serious without droning inside the cabin, the Super 40 is engineered to hit that mark.
This muffler carries the deep, powerful tone of the Original 40 Series but adds the refinements of Delta Flow® technology. The result is an aggressive sound level that announces your setup while keeping low-frequency resonance in check, so you get the character you want on the outside without unwanted boom on the inside.
Built to Last
Durability is designed in from the start. The Super 40 is constructed of 16 gauge aluminized steel and fully MIG welded for maximum strength, so it can stand up to the heat and vibration of demanding street and strip use. A high-temperature paint finish helps protect the case against the elements and the constant thermal cycling that comes with real-world driving.
Key Highlights
- Flowmaster Delta Flow® technology for strong flow and low interior resonance
- Larger case profile balancing performance and sound
- Deep, powerful, aggressive exhaust tone
- 16 gauge aluminized steel construction, fully MIG welded
- High-temperature paint finish for lasting protection
- 3.00″ inlet diameter
- Universal fitment for flexible custom exhaust builds
Fitment & Configuration
The Super 40 is a universal-fit muffler with a 3.00″ inlet diameter, making it a versatile choice for custom exhaust fabrication on street and strip vehicles. Because it’s designed as a universal component, it integrates into a wide range of exhaust routing and setups where a 3.00″ inlet applies. Confirm your application and routing before ordering to ensure the universal design works with your intended layout.
Please note that exhaust tips are sold separately, giving you the freedom to finish your system with the tip style that matches your build. This muffler falls under Emission Code 5, so factor that into your project plans as needed.
Why the Super 40
For enthusiasts who want an assertive, unmistakable sound and dependable, welded construction, the Flowmaster Super 40 Series delivers a proven combination. It’s a straightforward upgrade path to the deep tone and Delta Flow® performance that make the Super 40 a go-to muffler for street and strip applications. Build it into your custom exhaust and let it work.












