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Flowmaster 40 Series Chambered Muffler | Deep Aggressive Exhaust Sound 1
Flowmaster 40 Series Chambered Muffler | Deep Aggressive Exhaust Sound 2

Flowmaster 40 Series Universal Chambered Muffler – Rich, Aggressive Exhaust Tone

Original price was: $99.95.Current price is: $66.63.

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Description

The Flowmaster 40 Series Chambered Muffler is the original aggressive exhaust upgrade that put Flowmaster on the map. Known for its deep, powerful tone both inside and outside the vehicle, this muffler is perfect for drivers who want that unmistakable Flowmaster sound.

  • Original chambered design for signature exhaust tone
  • Aggressive deep rumble under acceleration
  • Durable aluminized or stainless steel construction
  • Ideal for street, strip, and off-road builds

Whether you’re cruising your classic muscle car, daily driver, or off-road truck, the 40 Series delivers the legendary sound that enthusiasts have trusted for decades.

🔥 The muffler that started it all — built to perform, built to last.

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Additional information

Size

42441-2.25" offset int/2.25 center out, 42443-2.25" offset in/2.25" offset out, 42541-2.5" offset in/2.5" center out, 42543-2.5" offset in/2.5" offset out, 43041-3.0" offset in/3.0" center out, 430402-3.0" center in/2.5" dual out

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