Description
Overview
The Flowmaster Exhaust Muffler brings proven 40 Series Delta Flow performance to virtually any build, delivering the aggressive attitude serious enthusiasts want from a performance exhaust. Engineered around a two-chamber design, this muffler uses Flowmaster’s Delta Flow® technology to sharpen throttle response and clean up the tone of your car exhaust without sacrificing the durability you expect from a name that defines the muffler category. Whether you’re piecing together a full exhaust system or upgrading a tired factory can, this universal-fit muffler is a smart cornerstone for your project.
At the heart of the design are Delta deflectors that generate increased scavenging for better performance and reduced interior sound. Compared to a standard 40 Series, this version delivers a milder exterior tone and reduced interior resonance, so you get a rumble that turns heads on the street or strip while keeping the cabin more livable on the highway. It’s a balance that makes it a versatile choice among performance mufflers.
Built to Last
Construction is where this Flowmaster muffler earns its keep. The body is built from 16 gauge aluminized steel and fully MIG welded for maximum durability, then finished in high-temperature paint to hold up against the heat and elements that come with an exhaust automobile application. This is a muffler designed to survive the abuse of Street/Strip driving season after season.
Specifications & Fitment
This is a 40 Series Delta Flow muffler with a 2.50-inch inlet diameter and a dual outlet location, making it easy to integrate into a wide range of cat back exhaust system layouts. Because fitment is universal, it works across countless applications — just confirm your inlet size and routing before ordering. The muffler mounts using new hangers (not included), and exhaust tips are sold separately, so you can tailor the finished look to your ride. Emission Code: 5.
- 40 Series Delta Flow two-chamber design with Delta Flow® technology
- Delta deflectors increase scavenging for better performance
- Aggressive sound with reduced interior resonance vs. standard 40 Series
- 16 gauge aluminized steel, fully MIG welded construction
- High-temperature paint finish for heat and corrosion resistance
- 2.50-inch inlet, dual outlet, universal Street/Strip fitment
When you shop for exhaust upgrades, few components define the character of your setup like the muffler. Building a complete catback exhaust or swapping mufflers on an existing exhaust system, the Flowmaster 40 Series Delta Flow gives you the aggressive voice and flow-focused engineering that made these mufflers a benchmark. Pair it with your choice of tips and hangers to complete a performance exhaust that sounds as strong as it drives.
