Dynomax 17218 Exhaust Muffler

Part Number
Ultra Flo Welded Universal Muffler; Oval; 4.5 in. x 9.75 in.; Single 2.5 in. ID; 14 in. Shell Length; 19 in. Overall Length; Single Outlet
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DynoMax(R) Ultra Flo(TM) Welded performance stainless steel mufflers feature 100-percent welded construction for lifelong durability. The unrestricted, straight-through design dyno proven to flow up to 2,000 SCFM and support up to 2,000 horsepower. Each muffler uses our exclusive Continuous Roving Fiberglass (CRF) Technology to absorb unwanted interior resonance while maintaining a deep performance tone. The 'Pure Unadulterated POWER' of DynoMax(R) Ultra Flo(TM) Welded mufflers are backed by a Limited Lifetime Warranty and exclusive 90-Day Performance & Sound Guarantee(TM).

BRAND: Dynomax


  • CRF Technology Absorbs Unwanted Interior Resonance
  • Dyno Proven To Flow Up To 2000 SCFM And Support Up To 2000 HP
  • Exclusive Continuous Roving Fiberglass Technology
  • Limited Lifetime Warranty
  • Unrestricted Straight-Through Design
  • Center Inlet-Center Outlet
  • Proudly Manufactured In The USA
  • Dynomax Muffler
  • DynoMax Ultra-Flo Welded Muffler
  • Constructed Using All 409 Stainless Steel
  • Reduces Back pressure
  • DynoMax Ultra Flo Welded Muffler
  • 100% Welded Construction For Lifelong durability
  • Maintains A Deep Performance Tone
  • Straight-Through Design Ensures Unrestricted Exhaust Flow
  • Dynomax Ultra Flo Welded Universal Muffler


Automotive Item GradeHigh Performance Part
Body Height4.500 in.
Body Length14.000 in.
Body Width9.750 in.
Inlet Connection TypePipe
Inlet Diameter DesignationInside Diameter
Inlet Inside Diameter2.500 in.
Inlet Outside Diameter2.500 in.
Inlet PositionCenter
Inlet Quantity1
Inlet TypeSingle Center
Main Piping Diameter2.500 in.
MaterialAluminized Steel
Muffler Body FinishBare
Muffler Body Height4.500 in.
Muffler Body Length14.000 in.
Muffler Body MaterialStainless Steel
Muffler Body ShapeOval
Muffler Body Width9.750 in.
Muffler Count1
Muffler Inlet Diameter2.500 in.
Muffler Outlet Diameter2.500 in.
Muffler Overall Length19.000 in.
Muffler ReversibleYes
Muffler TypeAbsorption
Outlet ConfigurationCenter
Outlet Connection TypePipe
Outlet Diameter DesignationInside Diameter
Outlet Outside Diameter2.500 in.
Outlet PositionCenter
Outlet Quantity1
Outlet TypeSingle Center Outlet
Overall Length19.000 in.
Product GradePremium
Tip Quantity0
Total Part VIO0
WARNING CA Proposition 65No


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