Description
Overview
The Flowmaster 40 Series Chambered Muffler is the muffler that defines the classic, unmistakable Flowmaster sound. As part of the Original 40 Series lineup, this flowmaster muffler delivers an aggressive exterior and interior tone that has made the flowmaster company a benchmark name in performance mufflers. If you’re chasing that original, deep growl that put Flowmaster exhaust on the map, this is the exhaust muffler built to deliver it.
Engineered as a chambered performance muffler, the flowmaster 40 series is designed to give your build the bold, race-inspired character enthusiasts expect. Whether you’re finishing a fresh flowmaster exhaust system or upgrading a tired factory setup, this car muffler brings serious attitude to the sound of your street rod.
Built to Last
Durability is core to this flowmaster exhaust design. The muffler is constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability, so it stands up to the heat, vibration, and demands of real-world driving. A high-temperature paint finish adds an extra layer of protection against the elements and underbody heat, keeping this exhaust muffler car component looking and performing its best over the long haul.
Key Highlights
- Original 40 Series chambered muffler delivering the signature aggressive Flowmaster tone
- 16 gauge aluminized steel construction, fully MIG welded for maximum durability
- High-temperature paint finish for added heat and corrosion protection
- 3.00″ inlet diameter with dual outlet location
- 9.50″ body width for a compact, purposeful footprint
- Aggressive sound level tuned for both exterior and interior tone
Sound & Performance
The 40 Series is known for one thing above all: aggressive, no-apologies sound. The chambered design produces an aggressive tone that carries both outside and inside the cabin, giving your vehicle the raw, muscular note that separates a true performance muffler from a stock replacement. For anyone comparing flowmaster mufflers and searching for that authentic original Flowmaster sound, the 40 delivers exactly that.
Fitment & Installation Notes
This flowmaster 40 muffler features a 3.00″ inlet diameter and a dual outlet location, with a 9.50″ body width that fits neatly into a wide range of custom and street rod exhaust configurations. It uses new hangers, which are not included, so plan your installation accordingly. Exhaust tips are sold separately, giving you the freedom to finish the look of your flowmaster exhaust systems exactly the way you want. Vehicle type is classified as street rod, and this muffler carries an emission code of 5.
Add the Flowmaster 40 Series to your build and get the aggressive, iconic sound that has defined flowmaster exhaust for generations of performance enthusiasts.
