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Flowmaster Super 40 Series Muffler

  • Works in place of any other 40 Series muffler
  • Deeper, richer tone than original 40 Series muffler
  • The choice of performance street machine/rod builders
  • Constructed of 16-gauge aluminized steel or 409SS Stainless Steel
  • Fully MIG-welded for maximum durability

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  • In Stock
Inlet Diameter (in)
  • 2.25
  • 2.5
  • 3
  • 3.5
Outlet Diameter (in)
  • 2.25
  • 2.5
  • 3
  • 3.5
Vehicle Type
  • 4/6 CYL Engine
  • Classic Muscle Car
  • Late Model Muscle Car
  • Street Rod
  • Street/Strip
  • Truck/SUV
Inlet Position
  • Center
  • Dual
  • Offset
Material
  • 409 Stainless Steel
  • Aluminized Steel
Outlet Position
  • Center
  • Dual
  • Offset
  • Offset (Same Side)
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    Super 40 Series

    Developed from our Top Ten race muffler lineup for use on the street and strip. Utilizing Delta Flow Technology, this muffler gives the best performance to higher horsepower vehicles. The Super 40 features a black, oversize case, which keeps the resonance down while the deep outside tone says it’s a Flowmaster!