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Product Summary

Cat-Back Exhaust System Type, Dual Single or Dual

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    Key Specs

    MFG. Part #17405
    Exhaust System TypeCat-Back
    Single or DualDual
    Exhaust Tubing Diameter2-1/2 Inch
    Exhaust System Kit TypeDirect Fit
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    Flowmaster 17405 Details

    The Force II® cat-back exhaust system for the 2005-2010 Dodge Magnum RT, Dodge Charger RT and Chrysler 300C with the 5.7L Hemi engine is perfect for the person looking for all the benefits of a performance exhaust system with a deep moderate exterior exhaust note, but without the interior resonance that most systems have. The system features all mandrel-bent 2.50-inch aluminized steel tubing and our exclusive Scavenger Series® X-pipe flowing into a pair of powerful sounding Super 40 Series™ performance mufflers for a moderate tone. The tailpipes have a pair of specially tuned resonators at the back for minimal drone inside the car and are then finished off with large 4.00-inch polished stainless steel tips exiting in the OE cutouts in the lower valance. Includes all necessary parts, hardware and easy to follow instructions and is covered by our 3-year Limited Warranty. Notes: Also fits all-wheel Drive models.

    Features:

  • Includes Hangers and Hardware for an Easy Installation
  • Mandrel-bent 16-gauge Stainless Steel Tubing
  • Includes a Pair of Specially Tuned Resonators
  • Connects After Factory Catalytic Converter
  • Super 40 Series Performance Mufflers
  • Deep Moderate Exterior Exhaust Note
  • Uses the Factory Hanger Locations
  • Exclusive Scavenger Series X-pipe
  • Minimal Interior Resonance
  • Easy Installation
  • Application

    2005-2008 Dodge Magnum 345 CID/5.7L V8
    2005-2010 Chrysler 300 345 CID/5.7L V8
    2006-2010 Dodge Charger 345 CID/5.7L V8

    Rebates

    Holley IRS Sale 2026

    Save 10% instantly on select products across the Holley family of performance brands during the annual Holley I.R.S.Tax Sale. Instant rebate period has been extended and now runs from February 17, 2026 through April 19, 2026.

    Flowmaster 17405 Specifications

    KEY SPECS
    MFG. Part #17405
    BrandFlowmaster
    Exhaust System TypeCat-Back
    Single or DualDual
    Exhaust Tubing Diameter2-1/2 Inch
    Exhaust System Kit TypeDirect Fit
    GENERAL
    Exhaust ExitDual Split Rear
    Sound LevelMild/Moderate
    Muffler(s) IncludedYes
    Muffler Quantity2
    Muffler ConnectionsSingle Inlet | Single Outlet
    Drivetrain2WD/4WD
    Exhaust Tip IncludedYes
    Exhaust Tip Quantity2
    Exhaust Tip ShapeRound
    Exhaust Tip CutAngle
    Exhaust Tip Edge StyleRolled Edge
    Exhaust Tip Size4.00"
    Exhaust System MaterialAluminized Steel
    Exhaust System FinishNatural
    Exhaust Pipe ColorNatural
    Muffler SeriesSuper 40 Series
    Muffler MaterialAluminized Steel
    Muffler ColorNatural
    Exhaust Tip Material304 Stainless Steel
    Exhaust Tip FinishPolished
    Exhaust Tip ColorNatural
    Inlet QuantityDual
    Inlet Size2.50"
    Outlet Size2.50"
    Tailpipe Diameter2.5"
    Catalytic Converter(s) IncludedNo
    Hardware IncludedYes
    Heat ShieldNo
    Sold in QuantityKit
    GTIN Code700042020324
    Notes="Includes "X" style scavenger crossover."
    Exit LocationRear
    Customer Impersonation Script