How Flowmaster DELTA FLOW® Chamber Technology in Mufflers Enhances Your Car's Sound and Performance

If you're looking for a way to give your car an aggressive and sporty sound without sacrificing power and ride comfort, you might be interested in Flowmaster's DELTA FLOW® chamber technology in mufflers. It's an advanced noise suppression technology that utilizes the principle of acoustic phase to eliminate unwanted frequencies and enhance desired tones.

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What is DELTA FLOW® Chamber Technology?

DELTA FLOW® Chamber Technology is based on the classic design of a dual-chamber muffler introduced by Flowmaster in 1983. A dual-chamber muffler consists of two chambers connected by pipes through which exhaust gases flow. In the first chamber, there is a partial reflection of sound waves, which then pass into the second chamber, where they are further suppressed.

However, the dual-chamber muffler has some drawbacks, such as:

Excessive cabin noise, known as "drone," caused by low frequencies that are not adequately suppressed.
High flow resistance, limiting engine power and torque.
Increased fuel consumption due to engine performance loss.

To address these issues, Flowmaster developed DELTA FLOW® chamber technology, which involves adding special delta-shaped deflectors to the muffler chambers. These deflectors aim to change the direction and phase of sound waves, causing them to cancel each other out, eliminating unwanted frequencies and producing a harmonious sound.

How Does DELTA FLOW® Chamber Technology Work?

DELTA FLOW® Chamber Technology utilizes the phenomenon of interference of sound waves, where two sound waves of the same frequency, when meeting, can either reinforce or cancel each other out, depending on whether they are in phase or out of phase.

If sound waves are in phase, meaning they have the same values at the same time, their amplitudes add up, creating a wave with greater amplitude. This is called constructive interference.

If sound waves are out of phase, meaning they have opposite values at the same time, their amplitudes subtract, creating a wave with lower or zero amplitude. This is called destructive interference.

The delta-shaped deflectors in DELTA FLOW® chamber technology are designed to cause destructive interference for unwanted frequencies, such as low frequencies causing drone. They achieve this by altering the direction and phase of sound waves so that they are out of phase when they meet in the second chamber of the muffler. This way, sound waves cancel out, reducing noise.

The advantage of this method is that it does not negatively impact desired frequencies, such as mid-range and high frequencies that give the car a sporty character. The delta-shaped deflectors do not create additional flow resistance for exhaust gases, meaning they do not limit engine power and torque. On the contrary, they improve the efficiency of removing exhaust gases from cylinders, known as scavenging, enhancing engine performance.

flowmaster delta flow chamber technology in mufflers

1. Resonant Tuning Chamber™

Captures and cancels specific resonance inside the vehicle.

2. Power Chamber®

Creates a negative pressure that helps scavenge exhaust gases.

3. Delta Flow® Technology

Provides advanced noise cancellation by separating and recombining pulses at precise phase shifts and increased exhaust scavenging.

4. Low-pressure Balance Chamber

Blocks power-robbing atmospheric pressure from entering the system.

What Are the Benefits of DELTA FLOW® Chamber Technology?

Enhanced car sound by eliminating drone and amplifying the sporty tone.
Improved engine performance and efficiency by optimizing flow and scavenging of exhaust gases.
Enhanced ride comfort by reducing noise and vibrations in the cabin.
Improved car appearance and style by adding a distinctive look to the exhaust system.

DELTA FLOW® Chamber Technology is just one of the innovations Flowmaster offers to make noticeable differences in their sounds, such as the 40 Series, 50 Series, 60 Series, Super 10, Super 40, Super 44, and Super 50. Each of them has its own features and advantages, depending on what you're looking for and how you want to sound.

In summary, if you want your car to sound loud and great, you need to check out Flowmaster's DELTA FLOW® chamber technology. It will make your car sound like nothing else on the road.