CORSA Performance 8004002 dB Series Diesel Muffler 4in Center/Center 304SS
- Regular price
-
$570.99 - Regular price
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$621.99 - Sale price
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$570.99
In Stock: 6
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Product Specification:
SKU:COR8004002
MPN: 8004002
UPC: 847466005237
Weight: 22.7 lb
Inventory: 6
Type: Muffler
Vehicle Fitment
- 2011-2021 Ford F-250 Super Duty (6.7L Power Stroke V8, Diesel, 4WD/RWD)
- 2011-2021 Ford F-350 Super Duty (6.7L Power Stroke V8, Diesel, 4WD/RWD)
- 1999-2007 Ford F-250/F-350 Super Duty (various Power Stroke diesel applications, 4-inch exhaust systems)
- 2008-2010 Ford F-250/F-350 Super Duty (6.4L Power Stroke, diesel, 4-inch systems)
- Dodge Ram Cummins diesel applications (select 5.9L and 6.7L 4-inch exhaust systems)
Fitment Notes
- Universal-style diesel muffler designed for 4-inch exhaust systems.
- Fitment varies by truck configuration and exhaust system setup.
- May require clamp-on or weld-in installation depending on application.
- Not a vehicle-specific bolt-on exhaust system.
- Designed for diesel trucks requiring drone reduction and improved flow.
Features
- Patented CORSA Reflective Sound Cancellation (RSC) technology.
- Eliminates interior drone while maintaining aggressive exhaust tone.
- 4-inch straight-through high-flow design.
- Constructed from premium 304 stainless steel.
- Reduces exhaust backpressure for improved efficiency.
- Helps lower exhaust gas temperatures (EGTs).
- Notched and expanded inlet/outlet for flexible installation.
- Supports clamp-on or weld-in configuration.
- Corrosion-resistant for long-term durability in diesel environments.
Specifications
- Part Number: 8004002
- Manufacturer: CORSA Performance
- Product Type: Diesel Muffler (dB Series)
- Material: 304 Stainless Steel
- Inlet Diameter: 4.0 in
- Outlet Diameter: 4.0 in
- Inlet/Outlet Type: Center / Center
- Body Diameter: 9.62 in
- Overall Length: 27.25 in
- Case Length: 22.74 in
- Finish: Natural / Stainless
Included Components
- 1x CORSA Performance 8004002 dB Series Diesel Muffler
Product Description
The CORSA Performance 8004002 dB Series Diesel Muffler is engineered for heavy-duty diesel trucks using 4-inch exhaust systems, including Ford Super Duty Power Stroke and select Cummins applications. It is designed to deliver a performance exhaust tone while eliminating unwanted cabin drone through CORSA's patented Reflective Sound Cancellation (RSC) technology.
Built from 304 stainless steel, this muffler provides long-term corrosion resistance and durability in demanding towing and diesel operating conditions. Its straight-through, high-flow design reduces backpressure and supports improved exhaust efficiency while maintaining a refined sound profile during cruising.
With its universal-style configuration, the 8004002 can be installed using clamp-on or weld-in methods depending on the exhaust setup. It is a popular upgrade for diesel truck owners seeking a balance of performance sound, reduced drone, and long-lasting stainless steel construction.


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