Description
Overview
The Flowmaster Exhaust Muffler brings proven 40 Series Delta Flow performance to your build with a two-chamber design engineered for a stronger, more aggressive sound and improved flow. Featuring Flowmaster’s Delta Flow® technology, the Delta deflectors inside the case generate increased scavenging for better performance while taming interior resonance — delivering a milder exterior tone and reduced interior sound over the standard 40 series. If you’re ready to shop for exhaust that balances attitude and drivability, this muffler is a serious contender.
Built to last, this muffler is constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability. A high-temperature paint finish helps it stand up to the heat and elements that any hard-working exhaust system endures, making it a dependable centerpiece for a performance exhaust setup on a classic muscle car.
Key Benefits
The two-chamber Delta Flow architecture is the heart of this Flowmaster muffler. Where many mufflers force a trade-off between sound and flow, the Delta deflectors improve scavenging to help your engine breathe while keeping the cabin quieter than more raucous designs. The result is an aggressive exterior note that lets everyone know your car means business, without the constant drone that tires you out on longer drives.
- 40 Series Delta Flow two-chamber design with Delta Flow® technology
- Aggressive exterior sound with reduced interior resonance vs. standard 40 series
- 16 gauge aluminized steel construction, fully MIG welded for maximum durability
- High-temperature paint finish for lasting heat and corrosion resistance
- 3.00-inch inlet diameter, universal fitment for flexible installation
- Emission Code 5 — a true performance-oriented muffler
Fitment & Installation
This is a universal-fit muffler with a 3.00-inch inlet diameter, giving fabricators and enthusiasts the freedom to integrate it into a wide range of custom exhaust systems. It’s an ideal match for classic muscle car applications where you want to dial in the right blend of tone and performance. Note that it uses new hangers (not included) for mounting, so plan your installation hardware accordingly.
Because this is a muffler rather than a complete cat back exhaust system, the exhaust tip is sold separately, letting you finish the look exactly how you want. Whether you’re piecing together a full performance exhaust from scratch or replacing worn mufflers on an existing setup, the Flowmaster 40 Series Delta Flow slots in as a rugged, great-sounding upgrade.
For anyone comparing Flowmaster mufflers, MagnaFlow exhaust options, and other car exhaust upgrades, this Delta Flow muffler stands out for its purposeful blend of aggressive sound, improved scavenging, and heavy-duty aluminized steel construction.
