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Flowmaster Super 40 Series Dual In/Dual Out Oval Muffler; 2.50-Inch Inlet/2.50-Inch Outlet (Universal; Some Adaptation May Be Required)

Item HS69639
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$170.95

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      Product Information

      Features, Description, Q&A, Specs & Installation

      Features & Specs

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      • Body Height 5.00 In
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      • Body Length 13.50 In
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      • Body Material 409 Stainless Steel
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      • Body Width 10.00 In
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      • Category Exhaust
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      • Emission Code 5
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      • Fitment Universal; Some Adaptation May Be Required
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      • Grade Type Performance
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      • Inlet Connection Slip-Fit
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      • Inlet Diameter 2.50 In
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      • Inlet Inside Diameter 2.50 In
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      • Inlet Location Dual
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      • Inlet Outside Diameter 2.63 In
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      • Inlet Quantity 2
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      • Inlet Type Clamp-On
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      • Inlet Type Weld-On
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      • Mount Type Uses New Hangers Not Included
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      • Muffler Series Super 40 Series
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      • Muffler Type Chambered
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      • Outlet Connection Slip-Fit
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      • Outlet Inside Diameter 2.50 In
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      • Outlet Location Dual
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      • Outlet Outside Diameter 2.63 In
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      • Outlet Quantity 2
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      • Outlet Type Dual
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      • Overall Length 19.50 In
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      • Part Type Exhaust Muffler
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      • Product Type Street Mufflers
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      • Reversible No
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      • Shape Oval
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      • Sound Level Aggressive
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      • Tunable No
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      • Vehicle Type 4/6 Cyl Engine
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      • Vehicle Type Classic Muscle Car
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      • Vehicle Type Late Model Muscle Car
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      • Vehicle Type Street Rod
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      • Vehicle Type Street/Strip
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      • Vehicle Type Truck/SUV
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      Description

      Performance Muffler. The Flowmaster Super 40 Series Dual In/Dual Out Oval Muffler with 2.50-Inch inlet and outlet delivers a deep, aggressive exhaust note ideal for enhancing the sound and performance of high horsepower vehicles. It improves exhaust flow efficiency while reducing interior resonance for a more refined driving experience. This muffler is commonly used on street and strip vehicles, muscle cars, trucks, and SUVs looking for a bold sound combined with strong performance gains.

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      Construction and Appearance. Crafted from durable 16 gauge 409 stainless steel, this muffler features a larger, oval-shaped chamber body for optimized flow and sound control. The fully MIG welded construction ensures maximum strength and longevity, while the natural finish highlights its rugged stainless steel texture. The robust design provides resistance to corrosion and rough use in performance applications.

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      Installation. Installation requires moderate mechanical skill, with slip-fit dual inlet and outlet connections designed for clamp-on or weld-on mounting. No additional drilling is generally needed, though new hangers are required as none are included.

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      Application. Fits universal applications across 4 and 6-cylinder engines, classic and late model muscle cars, street rods, street/strip vehicles, and trucks/SUVs. Some adaptation may be required to achieve proper fitment depending on the vehicle’s exhaust configuration.

      Flowmaster 8525454

      CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

      4.7

      Reviews of Flowmaster Exhaust Products (500+)

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