Top 6 Best Flowmaster 40 Dual In Dual Out

of November 2024
1
Best ChoiceBest Choice
Flowmaster 8525454 Super 40 Series 2.50" Dual in and Out 16 Gauge 409S
Flowmaster
Flowmaster
10
Exceptional
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2
Best ValueBest Value
Flowmaster 9430422 40 Delta Flow Muffler - 3.00 Center IN / 2.25 Dual OUT -
Flowmaster
Flowmaster
9.9
Exceptional
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3
Flowmaster 80430402 40 Series Muffler 409S - 3.00 Center IN / 2.50 Dual OUT -
Flowmaster
Flowmaster
9.8
Exceptional
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4
Flowmaster 9430402 3 In(C)/2.5 Out(D) 40 Series Df Muffler
Flowmaster
Flowmaster
9.7
Exceptional
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5
Flowmaster 425403 2.50"In(D)/3"Out(C) 40 Series Muffler
Flowmaster
Flowmaster
9.6
Exceptional
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6
Flowmaster 8525554 50 H.D. Muffler 409S - 2.50 Dual IN / 2.50 Dual OUT -
Flowmaster
Flowmaster
9.5
Excellent
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7
Flowmaster 9425472 2.5 In(C)/Out(D) Super 44 Series Muffler
Flowmaster
Flowmaster
9.4
Excellent
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8
NEW FLOWMASTER SUPER 44 SERIES CHAMBERED MUFFLER,3.00" CENTER IN,2.50" DUAL
Southwest Speed
Southwest Speed
9.3
Excellent
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9
Flowmaster 8425152 Super 10 Muffler 409S - 2.50 Center IN / 2.25 Dual OUT -
Flowmaster
Flowmaster
9.2
Excellent
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10
Flowmaster 8530552 Super 50 Muffler 409S - 3.00 Center IN / 2.50 Dual OUT -
Flowmaster
Flowmaster
9.1
Excellent
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About Flowmaster 40 Dual In Dual Out

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Flowmaster 8525454 Super 40 Series 2.50" Dual in and Out 16 Gauge 409S Stainless Steel Exhaust System Black

Excellent performance on high horsepower vehicles. Noticeable interior resonance. Deep Aggressive Sound Exhaust Note. Durable fully welded 409SS stainless steel. Easy Installation.

Flowmaster 9430422 40 Delta Flow Muffler - 3.00 Center IN / 2.25 Dual OUT - Aggressive Sound, Black

Durable fully welded 16 gauge aluminized steel. Reduced interior resonance. Excellent streetstrip and off road application. No internal packing to blow-out. Race proven patented delta flow technology. Fit type Universal Fit.

Flowmaster 80430402 40 Series Muffler 409S - 3.00 Center IN / 2.50 Dual OUT - Aggressive Sound, Black

Excellent StreetStrip and Off Road application. Noticeable Interior Resonance. Aggressive Sound Exterior Exhaust Tone. Durable fully welded 409SS stainless steel. Fully MIG welded for maximum durability.

Flowmaster 9430402 3 In(C)/2.5 Out(D) 40 Series Df Muffler

Durable fully welded 16 gauge aluminized steel. Excellent StreetStrip and Off Road application. No internal packing to blowout. Race proven Delta Flow technology. Easy Installation.

Flowmaster 425403 2.50"In(D)/3"Out(C) 40 Series Muffler

Excellent StreetStrip and Off Road application. Noticeable interior resonance. Aggressive Sound Exterior Exhaust Tone. Durable fully welded 16 gauge aluminized steel. MIG welded for maximum durability.

Flowmaster 8525554 50 H.D. Muffler 409S - 2.50 Dual IN / 2.50 Dual OUT - Moderate Sound Black

Improved Horsepower, Torque and Engine Efficiency. Moderate Sound. Reduces Interior Resonance. Recommended for Dodge Ram Hemi and diesel trucks. Easy Installation.

Flowmaster 9425472 2.5 In(C)/Out(D) Super 44 Series Muffler

Deep Aggressive Sound Exhaust Note. Noticeable interior resonance. Race proven Delta Flow technology. Two chamber improvement. Easy Installation.

NEW FLOWMASTER SUPER 44 SERIES CHAMBERED MUFFLER,3.00" CENTER IN,2.50" DUAL OUT,BLACK FINISH

Brand New Flowmaster Super 44 Series Chambered Muffler, 3.00 Center In, 2.50 Dual Out, Black Finish Holley Part 9430452. Flowmaster Super 44 muffler uses the same Delta Flow technology found in our larger Super 40 mufflers. The Super 44 delivers a powerful rich tone and is the most aggressive, deepest sounding, highest performing 4 case street muffler we have ever built Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.. Features Race proven Delta Flow technology Recent 2 chamber improvement Noticeable interior resonance Deep Aggressive Sound Exhaust Note. NOTE Universal Muffler - Some adaptation may be required..

Flowmaster 8425152 Super 10 Muffler 409S - 2.50 Center IN / 2.25 Dual OUT - Aggressive Sound, Black

Super 10 series. Super aggressive sound level. 409 stainless steel construction. Delta Flow technology for maximum scavenging effect. Outlet Diameter2.250 inch. Fit type Universal Fit.

Flowmaster 8530552 Super 50 Muffler 409S - 3.00 Center IN / 2.50 Dual OUT - Moderate Sound, Black

Mild to moderate exterior exhaust tone. Minimal interior resonance. Excellent choice for large displacement vehicles. Improved horse powertorque and potential mileage improvement. Race proven patented delta flow technology. Fit Type Universal Fit.
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