Description
Overview
The Flowmaster Super 40 Series Chambered Muffler delivers the aggressive, deep exhaust note performance enthusiasts crave, paired with real flow-driven performance gains. Built around Flowmaster’s proven Delta Flow® technology, the Super 40 uses a larger case profile to strike the ideal balance between horsepower-friendly airflow and a commanding sound. If you want the unmistakable Flowmaster tone with reduced interior drone, this is the muffler engineered to give you the best of both worlds.
Compared to the Original 40 Series, the Super 40 keeps that deep, powerful character but takes it further with a deeper overall tone, extra performance, and low interior resonance thanks to Delta Flow® technology. It’s a purpose-built choice for Street/Strip vehicles that need to perform hard while sounding the part.
Built to Last
Durability is engineered in from the start. The Super 40 is constructed of 16-gauge 409S stainless steel and fully MIG welded for maximum strength and long service life under demanding conditions and high exhaust temperatures. A high-temperature paint finish helps the case stand up to the heat this muffler is designed to handle.
Key Highlights
- Delta Flow® technology for a balance of performance and aggressive sound
- Larger case profile with a deeper tone than the Original 40 Series
- Low interior resonance to help cut cabin drone
- 16-gauge 409S stainless steel construction, fully MIG welded
- High-temperature paint finish built for the heat
- Universal fitment with a 3.00″ inlet and dual outlet location
Configuration & Fitment
This muffler features a 3.00-inch inlet diameter and a dual outlet location, giving you flexibility when planning your exhaust routing. Fitment is universal, making the Super 40 a versatile addition to a wide range of Street/Strip builds. Because it is designed for a custom-fit installation, it uses new hangers (not included), and exhaust tips are sold separately, so you can select the components that match your specific setup.
The Super 40 falls under the Exhaust category as part of Flowmaster’s Super 40 Series and carries an Emission Code of 5. As with many performance exhaust components, it is accompanied by a California Proposition 65 warning.
Why Choose the Super 40
For drivers who want an aggressive sound level without sacrificing airflow, the Super 40 Series is a standout. Its combination of Delta Flow® internals, rugged stainless construction, and deep tone makes it a smart upgrade for anyone building a street machine that needs to breathe better and sound serious. Add your choice of hangers and exhaust tips to complete a build tailored exactly to your vehicle.










