Description
The Flowmaster 80 Series Crossflow Chambered Muffler is designed specifically for transverse-mounted exhaust applications, where the muffler is positioned behind the rear axle. Featuring a crossflow design, the inlet is located next to one of the outlets on the same side of the case, making it ideal for vehicles requiring compact and efficient exhaust routing.
This muffler delivers an aggressive muscle car exhaust tone, both inside and outside the vehicle, while maintaining Flowmaster’s signature chambered sound characteristics. Built using Flowmaster’s original two-chamber design, the 80 Series provides strong performance with a noticeable interior resonance that appeals to enthusiasts seeking a true performance exhaust experience.
Constructed from fully MIG-welded 16-gauge aluminized steel, this muffler offers excellent durability and long-lasting performance for street-driven classic muscle cars and performance vehicles.
Key Features
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Aggressive muscle car exhaust sound
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Original Flowmaster two-chamber design
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Crossflow configuration for transverse exhaust systems
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Noticeable interior exhaust resonance
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Designed for performance street applications
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Fully MIG-welded 16-gauge aluminized steel construction
Fitment Information
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Universal fitment
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Designed for transverse-mounted exhaust layouts
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Ideal for classic muscle cars
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Suitable for performance street vehicles
Muffler Specifications
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Muffler Series: 80 Series Crossflow
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Muffler Type: Chambered (Transverse)
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Muffler Shape: Oval
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Muffler Material: Aluminized Steel
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Muffler Finish: High-Temperature Paint
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Muffler Body Height: 4.00 inches
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Muffler Body Length: 15.00 inches
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Muffler Body Width: 9.75 inches
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Overall Length: 19.00 inches
Inlet Specifications
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Inlet Diameter: 3.00 inches
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Inlet Location: Offset
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Inlet Type: Slip-Fit / Clamp-On
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Inlet Inside Diameter: 3.00 inches
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Inlet Outside Diameter: 3.13 inches
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Inlet Quantity: 1
Outlet Specifications
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Outlet Diameter: 2.50 inches
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Outlet Location: Dual
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Outlet Type: Dual
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Outlet Inside Diameter: 2.50 inches
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Outlet Outside Diameter: 2.63 inches
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Outlet Quantity: 2
Additional Specifications
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Product Type: Street Muffler
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Part Type: Exhaust Muffler
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Grade Type: Performance
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Sound Level: Aggressive
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Vehicle Type: Classic Muscle Car
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Mount Type: Uses New Hangers (Not Included)
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Clamps Included: No
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Hangers Included: No
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Tunable: No
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Reversible: No
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California Proposition 65: No
