Flowmaster 40 Series Chambered Muffler – 2.50" Offset In / 2.50" Center Out
Prices and availability are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
We make things that work better and last longer. Our products solve real problems with clean design and honest materials.
Flowmaster 40 Series Chambered Muffler – 2.50" Offset In / 2.50" Center Out
Prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply to the purchase of this product.
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Most Aggressive Sound
Built for Maximum Performance
Loudest Flowmaster muffler. Compact single-chamber design with an open-pipe tone.
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Signature Sound
The Original Flowmaster Sound
Bold, unmistakable muscle-car tone. Delivers classic Flowmaster performance sound.
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Deep, Aggressive Tone
The Deepest Flowmaster Sound
Compact, powerful design with Delta Flow tech. Delivers rich, aggressive street tone.
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Straight-Through Design
Refined Sound, Everyday Drive
Affordable straight-through muffler with a deep, mellow tone for modern cars and daily drivers.
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Delta Flow Design
Performance Sound, Everyday Comfort
Three-chamber design with Delta Flow tech delivers power, performance, and a mellow tone.
Find Your Flowmaster Sound
Super 10 Series |
Origina 40 Series |
Super 44 Series |
Super 40 Series |
Flow FX |
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Customer Reviews
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1,270
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429
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301
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106
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1,315
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Price
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$101.95 | $101.95 | $137.95 | $173.95 | $84.95 |
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Sound Level
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Very Aggressive | Aggressive | Aggressive | Aggressive | Moderate |
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Interior Resonance
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Noticeable | Noticeable | Moderate | Moderate | Minimal |
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Tone
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Race tone | Classic tone | Deep tone | Refined tone | Refined tone |
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Best For
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Track builds | Muscle cars | Street builds | Street trucks | Daily drive |
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Key Features
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Compact design | Original design | Dual chamber | Low resonance | Modern design |
- LEGENDARY SOUND: This is the original Flowmaster muffler that enthusiasts know and love! Famous for its bold, aggressive bark and signature tone. It delivers the unmistakable attitude and street presence that made Flowmaster a legend.
- TWO-CHAMBERED INTERNAL DESIGN: Flowmaster’s classic two-chambered layout delivers that bold, aggressive exhaust sound Flowmaster is known for. Perfect for muscle cars, street rods, trucks, off-road rigs, and custom builds.
- PROVEN PERFORMANCE: Enhances airflow and reduces back pressure to help boost horsepower, torque, and throttle response.
- BUILT TO LAST: Made from 16-gauge aluminized steel and fully MIG-welded to withstand high heat and vibration with no internal packing to blow out or wear down.
- UNIVERSAL FITMENT: Designed for custom and modified exhaust systems, with multiple inlet/outlet sizes and configurations (center/offset, dual) for simplified installation and optimal fit.
| Brand | Flowmaster |
| Material | Alloy Steel |
| Item dimensions L x W x H | 22 x 10 x 5 inches |
| Vehicle Service Type | Car |
| Item Weight | 9.5 pounds |
We make things that work better and last longer. Our products solve real problems with clean design and honest materials.