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Ultra Flow SS Welded Muffler In/Out: Single 3" In Dual 2-1/2" Out
Product Discontinued
DYNOMAXPART NUMBER: 289-17273

Ultra Flow SS Welded Muffler In/Out: Single 3" In Dual 2-1/2" Out

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This product is no longer available. Please call customer service for assistance at 1-800-345-4545.


Center In / Dual Out
    Ultra Flow SS Welded Muffler
  • In/Out: Single 3'' In ; Dual 2-1/2'' Out
  • Body Length: 23''
  • Overall Length: 29''
  • Body Diameter: 5-1/2'' x 11''


  • Constructed Using 304 Stainless Steel For Lifelong Durability
  • Completely Polished For Show-Quality Shine
  • Unrestricted Straight-Through Design
  • Dyno Proven To Flow Up To 2000 SCFM And Support Up To 1900 HP
  • Exclusive Continuous Roving Fiberglass Technology
  • CRF Technology Absorbs Unwanted Interior Resonance
  • Maintains A Deep Performance Tone
  • Straight-Through Design Ensures Unrestricted Exhaust F

For Maximum Performance and Extra Long Lasting Construction, This is It!

The straight-through muffler design features a large internal pass tube with large perforations to maximize sound absorption yet retain ultra-smooth flow. Sound deadening is handled by stainless steel mesh along with continuous roving fiberglass mat that won't blow out (it's heat resistant to 1500°F!). All stainless steel materials for optimum appearance, corrosion resistance and longer life. Includes high chromium content, high-luster T-304 cover and heads.

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  • 100% welded construction for maximum durability.
  • Ultra Flo technology features straight-through design for maximum flow and power.
  • CRF (Continuous Roving Fiberglass) technology delivers an aggressive, powerful, deep performance sound.
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Part TypeMuffler
Product LineDynomax Ultra-Flo SS Mufflers
BrandDYNOMAX
Package Height6.3
Package Width11.8
Package Length30.1
Weight17.24 PG
Part CategoryPerformance Parts
Outlet QuantityTwo
Inlet LocationCenter
Muffler TypeAbsorption
Inlet PositionCenter
Inlet TypeSingle Center Inlet
Inlet Size (In.)3
Outlet StyleStandard, without tip
Muffler FinishPolished
Body Length23 in (584.2 mm)
Inlet Diameter3 in (76.2 mm)
Inlet QuantityOne
Muffler MaterialStainless steel
Outlet Size2.5 in (63.5 mm)
PositionN/A
Outlet Diameter2.5 in (63.5 mm)
QuantitySold individually
Overall Length29 in (736.6 mm)
Material304 Stainless Steel
Case Length23 in (584.2 mm)
Internal ConstructionGlass-wrap perforated tube
Case ShapeOval
Body Width11 in (279.4 mm)
Outlet LocationOffset
Body Height5.5 in (139.7 mm)
Outlet TypeDual Outlet
Outlet PositionOffset
Vendor Part Number17273
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
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