Description
Overview
The Flowmaster 40 Series Chambered Muffler is the muffler that built the brand’s reputation, delivering the deep, aggressive tone drivers instantly recognize as the original Flowmaster sound. Engineered as a performance muffler for enthusiasts who want their vehicle to be heard, this Original 40 Series design produces an aggressive exterior and interior tone that makes it a benchmark among performance mufflers. If you’ve been chasing that classic Flowmaster exhaust note, this is the exhaust muffler that defines it.
Built by the Flowmaster company using a chambered design, the 40 Series carries forward decades of muffler engineering into a compact, hard-hitting package. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability, this flowmaster muffler is finished in high-temperature paint to stand up to the heat and demands of a real exhaust system. It’s a car muffler built to sound aggressive and last.
Key Benefits
As part of Flowmaster’s exhaust systems lineup, the 40 Series is the go-to choice for street rods and enthusiasts who want unmistakable presence. The aggressive sound level makes it one of the most popular performance mufflers for anyone building an exhaust muffler car setup with attitude. Whether you’re upgrading a weekend cruiser or dialing in a full flowmaster exhaust system, this muffler brings the tone.
- Original 40 Series chambered design for the classic, aggressive Flowmaster sound
- 16 gauge aluminized steel construction, fully MIG welded for maximum durability
- High-temperature paint finish to handle real exhaust heat
- 2.50″ inlet diameter with a compact 19.00″ overall length
- Universal fitment ideal for street rod builds and custom exhaust systems
- Aggressive interior and exterior tone that defines the Flowmaster name
Options & What’s Included
This is a flowmaster 40 muffler with a 2.50″ inlet diameter and a 19.00″ overall length, making it easy to work into a wide range of custom exhaust routing. Exhaust tips are sold separately, giving you the freedom to finish your flowmaster exhaust exactly the way you want. Emission code 5 applies, so verify local regulations for your build before installation.
Fitment
Designed with universal fitment, the Flowmaster 40 Series muffler is well suited to street rod applications and custom fabrication where a distinctive, aggressive exhaust muffler is the goal. Its compact dimensions and 2.50″ inlet make it a versatile choice for builders assembling their own flowmaster exhaust systems. As with any universal car muffler, confirm your vehicle’s clearance, inlet size, and routing to ensure a clean install.
When you want the original flowmaster muffler tone backed by durable, welded construction, the flowmaster 40 series delivers exactly what its reputation promises.
