Made in USA
Ultra Flo Welded Cat-Back Single Exhaust System for 2005-2010 Jeep Commander, Grand Cherokee w/3.7L, 4.7L, 5.7L [Natural]
InfoVehicle Info Needed
DYNOMAXPART NUMBER: 289-19421

Ultra Flo Welded Cat-Back Single Exhaust System for 2005-2010 Jeep Commander, Grand Cherokee w/3.7L, 4.7L, 5.7L [Natural]

$46599
ShippingShips on 09/21/2026
Lowest PriceLowest Price Guarantee

Jeep Cherokee/Grand Cherokee/Wagoneer/Grand Wagoneer/Commander
Ultra Flo Welded Cat-Back Single Exhaust System
  • 2005-2010 Jeep Commander, Grand Cherokee
  • 3.7L, 4.7L, 5.7L Engine
  • Cat-Back System
  • 24 in. Length
  • 2.5 in. Diameter
  • Steel
  • Natural Finish
  • Sold as a Kit

    The Dynomax 19421 is an ultra flo welded cat-back single exhaust system for 2005-2010 Jeep Commander, Grand Cherokee equipped with the 3.7L, 4.7L, 5.7L engine options. Built from steel with a natural finish, it is engineered to restore proper exhaust flow and provide a direct-fit installation.

    Dynomax 19421 Features:

    • Material: Steel
    • Finish: Natural
    • Pipe Diameter: 2.5 in.
    • Length: 24 in.
    • Bend Type: Mandrel
    • System Style: Cat Back
    • System Type: Single
    • Clamp Count: 3

    Dynomax 19421 Kit Contents:

    • Flanged Intermediate Pipe
    • Muffler
    • Tail Pipe
    • Tip
    • Clamps

    Dynomax 19421 Key Benefits:

    • Includes DynoMax Ultra Flo welded muffler, pipes, tip and clamps.
    • Direct-fit bolt-on pre-assembled solution with welded hangers, pipes and clamps for easy installation that doesn't require specialized fabrication and/or welding.
    • 2.5-in. Aluminized-steel tubing with mandrel bends improves flow capacity over traditional bends while increased pipe diameter from OE sizes increases flow and power.
    • Straight-through design ensures unrestricted exhaust flow and reduces back pressure; dyno proven to flow up to 1,100 SCFM.
    • Exclusive Continuous Roving Fiberglass (CRF) technology absorbs unwanted interior resonance while maintaining a deep performance tone.
    • Muffler features stainless-steel construction with a micro-finish for lifelong protection and 100% welded design for maximum durability.
  • Part TypeExhaust System
    BrandDYNOMAX
    Package Height11.5
    Package Width14.5
    Package Length77.0
    Weight41.8 PG
    Part CategoryPerformance Parts
    Hardware IncludedYes
    Tailpipe Diameter (In.)2.5
    Tip CutStraight
    Exit LocationRear
    Muffler StyleTurbo
    Inlet QuantityOne
    Tip Outlet Size3 in (76.2 mm)
    Tip IncludedYes
    QuantitySold as a kit
    System FinishAluminized
    Muffler IncludedYes
    Muffler QuantityOne
    System StyleCat Back
    Muffler ConfigurationSingle inlet/Single outlet
    System MaterialSteel
    Exit QuantityOne
    Tip MaterialStainless steel
    Tip Edge StyleNon-rolled edge
    Tip QuantitySingle
    Tip ShapeRound
    Intermediate Pipe Diameter2.5 in (63.5 mm)
    Part FitmentDirect Fit
    Exhaust TypeSingle
    Vendor Part Number19421
    Package Qty1
    Package TypeEA
    No Questions
    No Reviews
    Some parts are not legal for use in California or other states with similar laws / regulations
    p65 warning
    Your Cart

    Your shopping cart is empty!