Description
Overview
The Flowmaster Super 40 Series Chambered Muffler delivers the deep, powerful tone that made the 40 Series a legend, now refined with Flowmaster’s Delta Flow® technology. Built around a larger case profile, the Super 40 strikes the balance between serious performance and an unmistakable sound, making it a go-to choice for classic muscle car builds that demand both attitude and flow.
Delta Flow® technology is the heart of this chambered muffler, engineered to deliver the aggressive exterior sound enthusiasts crave while keeping low interior resonance in check. That means you get the deep, powerful growl of the Original 40 Series paired with the performance and refinement benefits of Flowmaster’s proven internal design.
Built to Last
Durability is engineered into every seam. The Super 40 is constructed from 16-gauge aluminized steel and fully MIG welded for maximum strength and long service life, standing up to the heat and stress of daily driving and spirited runs alike. A high-temperature paint finish helps protect the case and keep it looking the part under the vehicle.
Key Highlights
- Delta Flow® technology for strong performance and reduced interior resonance
- Larger case profile delivering the best of both performance and sound
- Deep, powerful, aggressive tone rooted in the Original 40 Series character
- 16-gauge aluminized steel construction, fully MIG welded for durability
- High-temperature paint finish for added protection
- 3.00″ inlet diameter
Sound & Performance
If you want an aggressive sound level without drowning the cabin in drone, the Super 40 is dialed in for exactly that. The chambered design and Delta Flow® internals produce a deep, throaty exhaust note under acceleration while managing resonance so you can still enjoy the drive. It’s a natural fit for classic muscle cars where the exhaust tone is as much a part of the experience as the horsepower.
Fitment & Installation Notes
This is a universal-fit muffler with a 3.00″ inlet diameter, giving fabricators and DIY builders flexibility to integrate it into a custom or replacement exhaust setup. Installation uses new hangers, which are not included, so plan your build accordingly. Exhaust tips are sold separately, letting you finish the system exactly to your taste.
Whether you’re restoring a classic muscle car or upgrading a custom exhaust, the Flowmaster Super 40 Series brings together heritage sound, modern Delta Flow® engineering, and heavy-duty construction in one proven package. Choose the Super 40 when you want an aggressive exhaust note backed by durable, fully welded build quality.
