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50 Series Big Block

Our largest and quietest muffler, the 50 Series Big Block Mufflers is made for tow vehicles, full-size trucks, large SUV’s and RV’s/Motor homes. More than just compatible with big cubic inch engine application, the 50 Series Big Block incorporates a very large Resonance Tuning Chamber to almost completely reduce interior sound in large cab vehicle and enough case volume to handle engines under heavy loads – perfect for tow vehicles.

Flowmaster 50 Series Big Block Muffler

  • The quietest Flowmaster we make!
  • Available in 16-gauge aluminized steel
  • Fully MIG-welded for maximum durability
  • Greatly reduces interior sound and resonance

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Inlet Diameter (in)
  • 2.75
  • 3
  • 3.5
Outlet Diameter (in)
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  • 3.5
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Outlet Position
  • Dual
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