Description
The Flowmaster 40 Series Delta Flow Chambered Muffler with a 2.50-inch offset inlet delivers aggressive exhaust sound while improving performance and reducing interior resonance compared to standard 40 Series mufflers. This two-chamber design incorporates Flowmaster’s race-proven Delta Flow technology, using Delta deflectors to enhance exhaust scavenging while controlling cabin noise.
Constructed from 16-gauge aluminized steel and fully MIG welded, this muffler provides long-lasting durability for street, strip, and off-road applications. The Delta Flow design produces a milder exterior tone and reduced interior resonance compared to standard 40 Series designs, while maintaining the deep, powerful Flowmaster sound that enthusiasts expect.
With a universal-fit design, 2.50-inch offset inlet, and dual 2.25-inch outlets, this muffler is ideal for custom exhaust setups where aggressive sound and reliable performance are required.
Features & Benefits
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Aggressive exhaust sound
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Two-chamber Delta Flow design
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Race-proven Delta Flow technology
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Improved exhaust scavenging for better performance
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Reduced interior resonance compared to standard 40 Series mufflers
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Milder exterior tone than traditional 40 Series
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No internal packing to blow out
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Durable fully welded 16-gauge aluminized steel
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Excellent for street, strip, and off-road applications
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High-temperature black painted finish
Specifications
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Brand: Flowmaster
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Muffler Series: 40 Series Delta Flow
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Muffler Type: Chambered
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Product Type: Street Mufflers
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Part Type: Exhaust Muffler
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Category: Exhaust
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Sub Category: Mufflers
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Grade Type: Performance
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Sound Level: Aggressive
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Shape: Oval
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Body Material: Aluminized Steel
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Finish: High-Temperature Paint
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Color: Black
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Body Length: 13.00 in
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Body Height: 4.00 in
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Body Width: 9.75 in
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Overall Length: 19.00 in
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Inlet Diameter: 2.50 in
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Inlet Inside Diameter: 2.50 in
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Inlet Outside Diameter: 2.63 in
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Inlet Quantity: 1
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Inlet Location: Offset
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Inlet Type: Clamp-On
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Inlet Connection: Slip-Fit
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Outlet Inside Diameter: 2.25 in
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Outlet Outside Diameter: 2.38 in
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Outlet Quantity: 2
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Outlet Location: Dual
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Outlet Type: Dual
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Outlet Connection: Slip-Fit
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Mount Type: Uses New Hangers (Not Included)
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Clamps Included: No
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Hanger Included: No
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Heat Shield Attached: No
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Reversible: No
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Tunable: No
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California Proposition 65: No
Fitment Information
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Universal Fit
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Designed for vehicles with 4-cylinder engines
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Designed for vehicles with 6-cylinder engines