Description
Overview
The Flowmaster Super 40 Series Chambered Muffler brings proven race-bred technology to the street and strip. Developed from Flowmaster’s Top Ten race muffler lineup, the Super 40 delivers the aggressive, deep, powerful sound muscle car enthusiasts crave while incorporating the performance-minded engineering that has made Flowmaster a household name in the exhaust world. If you’re chasing serious tone paired with genuine flow, this is a muffler built to perform.
At the heart of the Super 40 is Flowmaster’s Delta Flow® technology, combined with a larger case profile that provides the best of both worlds: strong performance and a commanding exhaust note. That larger case shines especially on forced induction and high-horsepower vehicles, where flow and sound quality matter most. You get the deep, powerful character of the Original 40 Series, but with the added benefits of Delta Flow® performance and reduced interior resonance for a cleaner, more refined drone-free experience in the cabin.
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 longevity. It’s finished in high-temperature paint to help it stand up to the heat and demands of an active exhaust system. Whether you’re building a weekend cruiser or a high-output street/strip machine, this muffler is made to hold up.
Key Benefits
- Delta Flow® technology for a balance of performance and aggressive sound
- Larger case profile ideal for forced induction and high-horsepower builds
- Deep, powerful tone reminiscent of the Original 40 Series
- Low interior resonance for a cleaner in-cabin experience
- 16 gauge 409S stainless steel, fully MIG welded construction
- High-temperature paint finish for heat resistance
Fitment & Configuration
This is a universal-fit muffler with a 3.50″ inlet diameter, engineered with the late model muscle car in mind. Its universal design gives fabricators and DIY builders the flexibility to integrate it into a wide range of custom and performance exhaust setups. Note that exhaust tips are sold separately, so you can select the tip style that best suits your build and finish preferences.
Carrying an Emission Code of 5, the Super 40 is part of Flowmaster’s chambered muffler family within the Exhaust category. As with many performance exhaust components, this product carries a California Proposition 65 warning.
Why Choose the Super 40 Series
For enthusiasts who want race-derived engineering, an unmistakable aggressive sound level, and rugged stainless steel construction, the Flowmaster Super 40 Series delivers a proven combination. Choose the configuration that fits your build and give your late model muscle car the deep, powerful voice and improved flow it deserves.








