Installation Time
(approx) 2 Hours
Difficulty Level:
Light to Moderate mechanical skill required.
Installation Guides
No guide available for this part yet.
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Features, Description, Q&A, Specs & Installation
| Brand | Flowmaster |
| Muffler Inlet Size | 2.50 Inch |
| Muffler Installation Type | Clamp-On Muffler |
| Muffler Type | Chambered Muffler |
Legendary Performance Sound. The Flowmaster 40 Series Oval Muffler delivers the aggressive sound and performance that enthusiasts have come to expect from the Flowmaster name. Designed to handle the demands of street, strip, and off-road environments, this muffler produces a deep, throaty tone with pronounced interior resonance. This Flowmaster 40 Series Oval Muffler is universal fit, making it adaptable to a wide range of custom and performance vehicle applications.
Construction and Appearance. Built from fully welded 16-gauge aluminized steel, this muffler is engineered for long-lasting durability under extreme conditions. Its matte black finish adds a stealthy, performance-focused look that resists corrosion while maintaining an aggressive aesthetic.
Installation. As a direct replacement component, the muffler allows for an adaptable installation process in a variety of custom setups. The dual in/center out design, with 2.50-inch inlets and a 3-inch outlet, supports a wide range of performance exhaust configurations with minimal fabrication required.
Application. This Flowmaster 40 Series Oval Muffler is universal fit. It enhances exhaust tone and flow, delivering a signature sound that makes a bold statement on the street or the track while maintaining long-term performance integrity.
Flowmaster 425403
CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Installation Info
Installation Time
(approx) 2 Hours
Difficulty Level:
Light to Moderate mechanical skill required.
Installation Guides
No guide available for this part yet.
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