Flowmaster 40 Series Muffler, 2.50 offset in/out, aluminized steel vs MagnaFlow 11224 exhaust muffler 4x9 oval stainless satin
Overall winner: MagnaFlow 11224 exhaust muffler 4x9 oval stainless satin
Key Differences
Flowmaster (A) offers a two-chambered design and a bolder, more aggressive tone with an easier installation and sits in a more affordable price tier; MagnaFlow (B) uses stainless steel construction, an oval satin finish, and is dyno-proven for performance with a deeper, resonant tone and broader universal fitment but has mixed feedback on drone and appearance
Flowmaster 40 Series Muffler, 2.50 offset in/out, aluminized steel
Original Flowmaster muffler with bold, aggressive tone and two-chamber design for muscle cars, street rods, trucks, and strip builds. Customers note easy installation, good fit, and a low rumble that doesn't drone in the cabin
Pros
- bold, aggressive exhaust tone
- two-chambered internal design
- easy installation
- good fit with various vehicle types
Cons
- sound may be loud for some applications
MagnaFlow 11224 exhaust muffler 4x9 oval stainless satin
Oval muffler with 4x9 body, designed to improve exhaust flow and produce a deep tone. Dyno-tested performance with straight-through core and dual-stage packing. Made in the USA and offers universal fitment
Pros
- deep, resonating exhaust tone
- dyno-proven performance
- universal fitment
- made in the USA
Cons
- drone levels reported as mixed by customers
- appearance feedback is mixed
- professional installation recommended
Head-to-Head
| Criteria | Winner |
|---|---|
| Price | Flowmaster |
| Durability | MagnaFlow Exhaust Products |
| Versatility | MagnaFlow Exhaust Products |
| User Reviews | Tie |