Description
Overview
The Flowmaster 40 Series Chambered Muffler is the muffler that built the Flowmaster company’s reputation for deep, aggressive tone. Engineered as part of the Original 40 Series, this flowmaster muffler delivers the unmistakable interior and exterior sound that enthusiasts associate with a genuine flowmaster exhaust. If you want that raw, original Flowmaster growl from your street rod or performance build, this is the exhaust muffler to reach for.
Built for the long haul, this car muffler is constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability. A high-temperature paint finish helps it stand up to the heat and demands of a hard-working exhaust muffler car setup, making it a dependable centerpiece for a complete flowmaster exhaust system.
Key Benefits
The chambered design is what separates flowmaster mufflers from the crowd. Instead of relying on packing material that can burn out over time, the 40 Series uses Flowmaster’s proven chambered technology to produce an aggressive tone both inside and outside the vehicle. It’s a performance muffler engineered to sound as serious as it looks, and it slots easily into a wide range of builds thanks to its universal fitment.
- Original 40 Series chambered design for the classic, aggressive Flowmaster sound
- Durable 16 gauge aluminized steel construction, fully MIG welded
- High-temperature paint finish for lasting heat resistance
- 2.50″ inlet diameter with a 19.00″ overall length
- Universal fitment, ideal for street rod and performance applications
- Emission Code 5 rated
Fitment & Installation
This is a universal-fit muffler, giving fabricators and DIY builders the flexibility to integrate it into custom and street rod exhaust routing. It features a 2.50-inch inlet diameter and a compact 19.00-inch overall length, so it fits neatly into tight chassis packaging. Mounting uses new hangers, which are not included, so plan to source the appropriate hardware for your installation. Exhaust tips are also sold separately, letting you finish the system exactly the way you want.
Why the 40 Series?
Among performance mufflers, the flowmaster 40 series remains a benchmark for drivers who want their build heard. Whether you’re upgrading a single exhaust muffler or piecing together a full flowmaster exhaust system, the flowmaster 40 brings the aggressive, chambered voice that made the brand famous. As a foundation for street rods and performance cars alike, this flowmaster exhaust muffler pairs proven durability with the sound that keeps enthusiasts coming back to flowmaster exhaust systems.
Choose the Flowmaster 40 Series Chambered Muffler when you want a rugged, great-sounding car muffler backed by a design that has earned its place in the performance world.
