Looking for the Best Flowmaster 40 available to buy right now on Amazon but don’t want to have to do all the research on the pros and cons of the different types of Flowmaster 40?
Pop Expert have put together this list of the top 10 selling Flowmaster 40 on Amazon – sorted by overall popularity and positive consumer reviews.
The Pop Expert list of top selling Flowmaster 40 is the ideal place to start when you are trying to find the Best Flowmaster 40 for your neeeds.
Popular Flowmaster 40 on Amazon
Details on the Best Flowmaster 40
On Sale!Bestseller No. 1
Flowmaster 40 Series Original Chambered Muffler – 2.50” Offset In / 2.50” Center Out – Aggressive Sound – 16-Gauge Aluminized Steel – For Muscle Cars, Street Rods, Trucks, SUVs & Strip Builds (42541)
- 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.
$112.95
−$23.00
More Details
On Sale!Bestseller No. 2
Flowmaster 40 Series Original Chambered Muffler – 3.00” Center In / 2.50” Dual Out – Aggressive Sound – 16-Gauge Aluminized Steel – For Muscle Cars, Street Rods, Trucks, SUVs & Strip Builds (430402)
- 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.
$112.95
−$23.00
More Details
Bestseller No. 3
Flowmaster 40 Series Original Chambered Muffler – 2.50” Offset In / 2.50” Offset Out – Aggressive Sound – 16-Gauge Aluminized Steel – For Muscle Cars, Street Rods, Trucks, SUVs & Strip Builds (42543)
- 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.
On Sale!Bestseller No. 4
Flowmaster 40 Series Original Chambered Muffler – 3.00" Offset In / 3.00" Center Out – Aggressive Sound – 16-Gauge Aluminized Steel – For Muscle Cars, Street Rods, Trucks, SUVs & Strip Builds (43041)
- 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.
$112.95
−$23.00
More Details
Bestseller No. 5
Flowmaster 40 Series Original Chambered Muffler – 2.25” Offset In / 2.25” Center Out – Aggressive Sound – 16-Gauge Aluminized Steel – For Muscle Cars, Street Rods, Trucks & SUVs (42441)
- 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.
Newest Flowmaster 40
On Sale!New
NEW FLOWMASTER 40 SERIES CHAMBERED MUFFLER,OVAL,BLACK,DUAL 2.5" INLET & OUTLET,19" OVERALL LENGTH
- Body Height (in) 4 Body Length (in) 13 Body Width (in) 9.5 Brand Flowmaster
- California Proposition 65 Required No Emission Code 5 Inlet Connection Type Pipe Connection Inlet Diameter (in) 2.5
- Inlet Position Dual Material Aluminized Steel Muffler Series Original 40 Series Outlet Diameter (in) 2.5 Outlet Position Dual
- Product Type Street Mufflers Shape Oval Sound Level Aggressive Sound Part Number 425404
$99.95
−$10.00
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New
NEW FLOWMASTER SUPER 44 SERIES CHAMBERED MUFFLER,3" CENTER INLET & OUTLET,BLACK
- Brand New Flowmaster Super 44 Series Chambered Muffler, 3" Center Inlet & Outlet, Black (Holley Part #943045)
- 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: Deep Aggressive Sound Exhaust Note | Noticeable interior resonance | Recent 2 chamber improvement | Race proven Delta Flow technology
- NOTE: Universal Muffler - Not a direct fit. Some adaptation required.
On Sale!New
NEW FLOWMASTER SUPER 44 SERIES CHAMBERED MUFFLER,BLACK,2.5" CENTER IN-CENTER OUT
- Brand New Flowmaster Super 44 Series Chambered Muffler, Black Paint Finish, 2.5" Center In & Center Out (Holley Part #942545)
- 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 four-inch case street muffler we have ever built! Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.
- Features: Deep Aggressive Sound Exhaust Note | Noticeable interior resonance | Recent two chamber improvement | Race proven Delta Flow technology
- NOTE: Universal Muffler - Not a direct fit. Some adaptation required.
$134.95
−$13.50
More Details
On Sale!New
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.
$134.95
−$13.50
More Details