Description
Overview
The Flowmaster 40 Series Delta Flow Chambered Muffler delivers the aggressive attitude Flowmaster is known for, backed by proven Delta Flow® technology. This two-chamber design uses precisely positioned Delta deflectors to generate increased scavenging, translating to better performance while taming interior resonance. If you want a bold exhaust note without the harshness of a straight chambered muffler, the 40 Series Delta Flow strikes an ideal balance between street-friendly manners and strip-ready sound.
Key Benefits
Compared to the standard 40 Series, this Delta Flow version offers a milder exterior tone and reduced interior resonance, so you get the aggressive sound level you crave up front while keeping cabin drone in check on the highway. The Delta deflectors are engineered to improve exhaust scavenging, helping your engine breathe more efficiently and putting the emphasis on real-world performance rather than noise alone.
Durability is built into every part of the design. This muffler is constructed of 16 gauge aluminized steel and fully MIG welded for maximum long-term strength. That heavy-duty construction, paired with a high-temperature paint finish, is designed to stand up to the heat and demands of a Street/Strip vehicle.
Highlights
- Two-chamber design with Flowmaster’s Delta Flow® technology for increased scavenging
- Aggressive sound level with a milder exterior tone than the standard 40 Series
- Reduced interior resonance for a more livable cabin experience
- 16 gauge aluminized steel construction, fully MIG welded for maximum durability
- High-temperature paint finish built to handle demanding conditions
- 2.25″ inlet diameter, engineered for Street/Strip applications
Fitment & Installation
This is a universal-fit muffler with a 2.25″ inlet diameter, making it a versatile choice for a wide range of custom and replacement exhaust builds. It mounts using new hangers, which are not included, so plan to source the appropriate hangers for your setup. Exhaust tips are sold separately, giving you the freedom to finish the system exactly the way you want.
Carrying an Emission Code of 5, this 40 Series Delta Flow muffler is designed for Street/Strip use. Whether you’re upgrading a daily driver for a more purposeful tone or building out a performance exhaust system, the combination of Delta Flow scavenging, rugged aluminized steel construction, and that signature aggressive Flowmaster sound makes it a smart, dependable choice.
Choose the Flowmaster 40 Series Delta Flow when you want proven chambered performance, serious build quality, and a sound that turns heads without overwhelming the driver.
