Description
Overview
The Flowmaster 40 Series Delta Flow Chambered Muffler brings proven Flowmaster performance and an unmistakable aggressive tone to your build. Engineered around a two-chamber design that incorporates Flowmaster’s Delta Flow® technology, this muffler is a favorite for late model muscle car owners chasing a serious sound and improved exhaust flow. The Delta deflectors generate increased scavenging for better performance while helping to reduce interior sound, giving you a milder exterior tone and reduced interior resonance compared to the standard 40 Series.
Delta Flow Technology & Performance
At the heart of this muffler is Flowmaster’s Delta Flow® deflector design. By directing exhaust gases for increased scavenging, the two-chamber layout works to promote better performance without sacrificing that aggressive character Flowmaster is known for. Enthusiasts who want a bold exhaust note that stays livable at cruising speeds will appreciate the refined balance this 40 Series Delta Flow delivers over earlier 40 Series designs.
Built to Last
Durability is built in. This muffler is constructed of 16 gauge aluminized steel and fully MIG welded for maximum longevity, then finished with a high-temperature paint to help stand up to the demands of the exhaust environment. It’s a rugged, dependable piece designed to hold its own under the heat and vibration of real-world driving.
Key Highlights
- Two-chamber design with Delta Flow® deflector technology for increased scavenging
- Aggressive sound level with milder exterior tone and reduced interior resonance versus the standard 40 Series
- 16 gauge aluminized steel construction, fully MIG welded for maximum durability
- High-temperature paint finish
- 2.00″ inlet diameter
- Universal fitment for flexible installation
Fitment & Installation
This is a universal-fit muffler with a 2.00-inch inlet diameter, making it a versatile choice for a wide range of exhaust setups. It’s an ideal match for late model muscle car applications where you want that classic Flowmaster growl paired with the improved manners of Delta Flow® technology. Installation uses new hangers, which are not included, so plan to source the appropriate hardware for your setup. Exhaust tips are sold separately, letting you tailor the finished look to your vehicle.
Why Choose the 40 Series Delta Flow
If you want the aggressive attitude of a chambered Flowmaster muffler with better in-cabin comfort and the scavenging benefits of Delta Flow® deflectors, the 40 Series Delta Flow hits the mark. Its aluminized steel, fully MIG-welded construction means it’s ready to perform mile after mile, delivering the sound and durability that made Flowmaster a trusted name in performance exhaust.
