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🔥 Unleash the roar that turns heads everywhere!
The Flowmaster 425404 Exhaust Muffler is a durable, fully welded 16 gauge aluminized steel muffler designed for universal fitment. It delivers the classic aggressive Flowmaster sound with both exterior and interior resonance, making it ideal for street, strip, and off-road use. Weighing only 4.65 kg, it combines rugged construction with lightweight performance.












| ASIN | B01IDDG3V0 |
| Brand | Flowmaster |
| Brand Name | Flowmaster |
| Compatible with Vehicle Type | Car |
| Configuration | Dual/Dual |
| Customer Reviews | 4.7 out of 5 stars 121 Reviews |
| Global Trade Identification Number | 00700042026029 |
| Included Components | Muffler |
| Inlet Connection Size | 2.5 Millimeters |
| Item Dimensions | 52.1 x 25.4 x 11.4 centimeters |
| Item Type Name | Exhaust Muffler |
| Item Weight | 4.65 kg |
| Item dimensions L x W x H | 52.1 x 25.4 x 11.4 centimeters |
| Item weight | 4.65 kg |
| Manufacturer | Flowmaster |
| Manufacturer Part Number | 425404 |
| Material | Alloy Steel |
| Material Type | Alloy Steel |
| Model Number | 425404 |
| OEM Equivalent Part Number | 425404 |
| Outlet Connection Size | 2.5 Millimeters |
| Shape | Oval |
| UPC | 700042026029 |
| Unit Count | 1 Count |
| Vehicle service type | Car |
A**M
Nice deep rumble
Best bang “rumble” for the buck
C**N
Great sound a more oower. I love it.
This muffler isbadass. It sounds awesome!
J**S
Good volume
Great muffler
M**E
Just the sound I wanted.
I've had the Flowmaster 40 Series mufflers on my car for over thirty years, and I wanted the same sound for my current project. Just the right amount of aggressive rumble without being overly obnoxious.
J**N
Good
Good
Trustpilot
1 week ago
1 week ago