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)

Price comparison
$ 99.95
free shipping | 1-2 Days
go to shop
$ 92.12
$ 12.50
go to shop
$ 99.95
$ 12.99
go to shop
$ 101.95
free shipping
go to shop
$ 101.99
free shipping
go to shop
$ 137.99
free shipping
go to shop
Product description
- 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.
You might also be interested in these center mufflers.
12% off

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.
$ 99.95
free shipping

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.
$ 99.95
free shipping

Flowmaster Flow FX Muffler – 3.00” Center In / 3.00” Center Out – Moderate Sound – Stainless Steel – Affordable Performance for Modern Trucks, Muscle Cars & Daily Drivers (71249)
STRAIGHT-THROUGH PERFORMANCE: Flowmaster’s Flow FX series mufflers deliver a moderate performance tone that’s deeper than chambered mufflers without excessive cabin drone.
$ 71.69
free shipping

Flowmaster Super 44 Series Chambered Muffler – 3.00” - Center In/Center Out – Aggressive Sound – 16 Gauge Aluminized Steel – For Classic & Late Muscle Cars, Street Rods, Trucks, SUVs (943045)
DEEPEST, MOST AGGRESSIVE TWO-CHAMBER SOUND: Built as the next evolution of the 40 Series, the Super 44 features an additional internal chamber with both chambers sized and spaced differently. This design delivers a deeper tone, improved performance, and aggressive exterior sound level, while offering moderate interior resonance.
$ 137.95
free shipping

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.
$ 99.95
free shipping

Flowmaster 15430S Outlaw Series Race Muffler
Durable fully welded 16 gauge aluminized steel - round case allows install in limited space applications
$ 123.95
free shipping

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.
$ 55.24
free shipping

Flowmaster 40 Series Original Chambered Muffler – 3.00” Offset In / 3.00” Offset Out – Aggressive Sound – 16-Gauge Aluminized Steel – For Muscle Cars, Street Rods, Trucks, SUVs & Strip Builds (43043)
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.
$ 58.31
free shipping
14% off

Flowmaster Super 44 Series Chambered Muffler – 3.00” - Center In/Dual Out – Aggressive Sound – 16 Gauge Aluminized Steel – For Classic & Late Muscle Cars, Street Rods, Trucks, SUVs (9430452)
DEEPEST, MOST AGGRESSIVE TWO-CHAMBER SOUND: Built as the next evolution of the 40 Series, the Super 44 features an additional internal chamber with both chambers sized and spaced differently. This design delivers a deeper tone, improved performance, and aggressive exterior sound level, while offering moderate interior resonance.
$ 110.73
free shipping

Flowmaster 953045 Super 40 Series Chambered Muffler
Race proven Delta Flow technology
$ 149.95
free shipping
9% off

Flowmaster 74151 FlowFX Muffler 3.5" Center Inlet/Outlet - Moderate Sound 409 Stainless Steel
Durable fully welded bright 409S stainless steel for good looks and long life
$ 104.95
free shipping

Flowmaster 50 Series Delta Flow Chambered Muffler – 3.00” - Center In/Dual Out – Moderate Sound – 16G - Aluminized Steel – Perfect for daily-driven Performance Vehicles and Passenger Cars (9430502)
MODERATE SOUND WITH DELTA FLOW TECHNOLOGY: The 50 Series Delta Flow features Flowmaster’s patented three-chamber Delta Flow design with a built-in resonance chamber, delivering a moderate exterior tone with deep, mellow sound and minimal in-cab resonance. Perfect for daily-driven performance vehicles and passenger cars, improving exhaust scavenging, boosting horsepower and torque, and keeps noise levels within strict decibel limits.
$ 119.99
free shipping