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Outlaw Series Cat-Back Exhaust System 2018 Jeep Wrangler JL Unlimited 2-Door/4-Door 3.6L
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FLOWMASTERPART NUMBER: 389-817844

Outlaw Series Cat-Back Exhaust System 2018 Jeep Wrangler JL Unlimited 2-Door/4-Door 3.6L

$1,24995
7 left in stock
ShippingShips on Sep 14, 2026
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Jeep
Outlaw Series Cat-Back Exhaust System
  • 2018 Jeep Wrangler JL Unlimited 2-Door/4-Door 3.6L
  • 2.500 in. Tubing
  • 4 in. Ceramic-Coated Stainless Steel Tips
  • Dual Out Rear Exit
  • 409S Stainless Steel

    FLOWMASTER MUFFLERS 817844 Features:

    This Flowmaster® Outlaw Cat-back exhaust system is designed for all 2018-2023 Jeep Wrangler JL 2 & 4-door models with the 3.6L engine and is perfect for the person looking for an aggressive exterior and interior exhaust tone, along with the performance benefits of a free-flowing exhaust system. This bolt-on emissions-legal system features 2.50-inch mandrel-bent stainless steel tubing, a specially tuned resonator to reduce interior resonance, along with an optional non-resonated pipe if you want an even more of an aggressive sound. Other features include a race-proven Outlaw® Series muffler with dual 2.5-inch mandrel-bent tailpipes finished off with a large pair of 4.00-inch black ceramic coated stainless steel tips for an aggressive modern look. The system is designed for an easy fit using the factory hanger locations and includes all necessary parts and hardware for installation.
    • Large 4.00-inch Black Ceramic Coated Tips
    • Dyno Tuned For Maximum Performance
    • Aggressive Exterior and Interior Sound
    • Uses the Factory Hanger Locations
    • 2.50-inch Mandrel-bent Tubing
    • Stainless Steel Construction
    • Specially Tuned Resonator
    • Lifetime Limited Warranty
    • Flowmaster Reliability
    • Easy Installation
    • Aggressive Race-Oriented Exhaust System

      Flowmaster Outlaw Series Exhaust Systems feature race-bred components that ensure minimal flow restriction (slight sound reduction) over open exhaust tubing on vehicles without catalytic converters. With easy fit in mind, these systems are mandrel-bent for maximum performance and mount using stock hanger locations. Outlaw systems are dyno-tuned to improve throttle response, deliver an ultra-aggressive interior/exterior tone, and include all necessary parts and hardware for easy installation.

    Part TypeExhaust System
    Product LineFlowmaster Outlaw Series Exhaust Systems
    BrandFLOWMASTER
    Package Height13.7
    Package Width34.5
    Package Length34.5
    Weight44.0 PG
    Muffler Body Diameter4 in.
    Tailpipe Diameter (In.)2.5
    Muffler Inlet Inside Diameter2.50 in.
    Hangers IncludedYes
    Main Piping Diameter2.50 in.
    Tail Pipe QuantityDual
    Inlet TypeClamp-On
    Exhaust Tip Material304 Stainless Steel
    Catalytic Converter Quantity0
    Muffler Body Length5.50 in.
    Sound LevelAggressive
    Muffler Body Material409 Stainless Steel
    Exhaust Tip CutAngled
    Gasket Or Seal IncludedNo
    Exhaust Tip IntercooledNo
    Pipe ColorSilver
    Muffler Quantity1
    Muffler Inlet Outside Diameter2.63 in.
    Muffler Flanged OutletNo
    Exhaust Tip ResonatedNo
    Muffler Outlet LocationDual
    Catalytic Converter IncludedNo
    Heat Shield IncludedNo
    Part CategoryPerformance Parts
    Exhaust Tip WallDouble Wall
    Exhaust Tip Quantity2
    Muffler Inlet LocationSide
    Exhaust Tip FinishBlack Ceramic Coating
    Exhaust Tip EdgeAngle Cut
    Valve IncludedNo
    Muffler TypeReflection
    Pipe Material409 Stainless Steel
    Muffler Body Width4 in.
    Tail Pipe Tapered OutletNo
    Muffler Body ShapeRound
    Mounting Bracket IncludedNo
    Muffler Outlet Quantity2
    Muffler FinishBlack High-Temperature Paint Finish
    Mount TypeUses Factory Hangers
    Clamps IncludedYes
    Tip Outlet Size4 in (101.6 mm)
    FinishNatural
    Exit StyleDual Out Rear
    Muffler Body Height4 in.
    Clamping TypeFlat Band
    Muffler Flanged InletNo
    Spring Bolt Kit IncludedNo
    Muffler SeriesOutlaw
    Muffler IncludedYes
    Exhaust Tip ConnectionWelded
    Tail Pipe Outlet Outside Diameter2.50 in.
    Jeep Jl1
    Valve TypeNot Applicable
    Intermediate Pipe Diameter2.5 in (63.5 mm)
    Exhaust Tip Diameter4 in.
    Part FitmentDirect Fit
    Vendor Part Number817844
    Package Qty1
    Package TypeEA
    No Questions
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