Description
Overview
The Flowmaster Exhaust Muffler brings race-bred sound and flow to your build with the 40 Series Delta Force design. Engineered around Flowmaster’s proprietary Delta Flow technology, this muffler is built to deliver excellent power characteristics while providing good sound reduction qualities. If you’re ready to shop for exhaust hardware that balances an aggressive tone with usable street-and-strip performance, this Flowmaster muffler is a serious contender for your exhaust system.
Flowmaster developed the Delta Force 40 series as a race muffler for applications where a muffler is required but a substantial decibel reduction over open headers is still needed. That makes it a smart choice for a late model muscle car that spends time at the track yet still needs to keep the noise in check. The result is a purpose-built performance exhaust component that lets the engine breathe while taming the raw volume of uncorked headers.
Key Benefits
The 40 Series Delta Force uses Flowmaster’s Delta Flow technology to promote flow and preserve power, so your car exhaust works with your engine rather than against it. An aggressive sound level gives this Flowmaster muffler its unmistakable attitude, while the high-temperature paint finish is built to withstand the heat that any hard-working exhaust muffler endures.
- Flowmaster 40 Series Delta Force muffler built with Delta Flow technology for strong power characteristics
- Aggressive sound level engineered for a substantial decibel reduction over open headers
- 3.00 inch inlet diameter to match performance exhaust and cat back exhaust system plumbing
- Durable high-temperature paint finish to handle exhaust heat
- Universal fitment designed with the late model muscle car in mind
- Recommended for racing applications where mufflers are required
Configuration & Fitment
This is a universal-fit muffler with a 3.00 inch inlet diameter, giving fabricators and enthusiasts the flexibility to integrate it into a custom exhaust automobile setup or a broader cat back muffler system. Because it’s universal, it mounts using new hangers (not included), and exhaust tips are sold separately, allowing you to finish the build exactly the way you want. Whether you’re piecing together a full catback exhaust or upgrading the mufflers in your existing exhaust system, plan your hangers and tip choices to complete the installation.
Whether you’re comparing a Flowmaster muffler against a Magnaflow muffler or building out a complete cat back exhaust system, the 40 Series Delta Force delivers the race-proven Flowmaster reputation for aggressive tone and reliable flow. Add this exhaust muffler to your late model muscle car project and enjoy performance-minded sound that stands apart from open headers.
Warning: This product carries a California Proposition 65 warning. Emission Code: 5.











