Description
The Flowmaster 40 Series Chambered Muffler delivers the iconic, aggressive exhaust tone that made Flowmaster famous. Designed for drivers who want deep resonance inside the cabin and a powerful, unmistakable exterior sound, this muffler is ideal for classic muscle cars, late-model performance vehicles, trucks, SUVs, and street/strip builds.
Constructed from durable 16-gauge aluminized steel and fully MIG welded, the 40 Series is built to withstand demanding street and off-road conditions. Its chambered internal design enhances exhaust scavenging and gives your vehicle a stronger, more responsive performance feel.
This model features a 3.00-inch offset inlet and 3.00-inch center outlet, making it a popular choice for custom exhaust systems where an aggressive sound and proven durability are required.
Fitment (Separate Section — Required Format)
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Universal fit
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Fits vehicles requiring 3.00-inch offset inlet
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Fits vehicles requiring 3.00-inch center outlet
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Suitable for:
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Classic muscle cars
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Late model muscle cars
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Street rods
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Street/strip builds
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Trucks and SUVs
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Features
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Original aggressive Flowmaster sound
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Deep interior resonance
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Durable 16-gauge aluminized steel construction
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Fully MIG-welded for strength and longevity
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Excellent choice for street/strip and off-road applications
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Chambered design for performance-enhancing exhaust scavenging
Technical Specifications
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Brand: Flowmaster
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Series: Original 40 Series
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Muffler Type: Chambered
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Material: Aluminized Steel
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Color: Black
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Finish: High-temperature paint
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Inlet Diameter: 3.00 IN
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Inlet Location: Offset
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Inlet Connection: Slip-Fit
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Outlet Diameter: 3.00 IN
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Outlet Location: Center
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Outlet Connection: Slip-Fit
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Outlet Quantity: 1
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Overall Length: 19.00 IN
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Body Length: 13.00 IN
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Body Width: 9.50 IN
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Body Height: 4.00 IN
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Shape: Oval
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Sound Level: Aggressive
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Fitment: Universal
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Reversible: No
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Vehicle Type Compatibility: Classic muscle, late-model muscle, street rod, street/strip, truck/SUV
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Clamps Included: No
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Hangers Included: No
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Heat Shield: No
