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Vehicle Info NeededFLOWMASTERPART NUMBER: 389-817682
Ford Mustang GT/LX/Cobra 4.6L/5.0L Outlaw Series Cat-Back Exhaust System
$71495
Ships on Sep 03, 2026
Lowest Price GuaranteeFord
Outlaw Series Cat-Back Exhaust System1986-2004 Ford Mustang GT/LX/Cobra 4.6L/5.0L 2.5 in. Tubing No Tips Short Dump Exit 409S Stainless Steel
FLOWMASTER MUFFLERS 817682 Features:
Flowmaster's race-oriented Outlaw® Extreme Cat-back system is designed for the enthusiast looking for the maximum sound level and performance from their 1986-2004 Mustang GT, LX and Cobra models with either a 4.6L or 5.0L engine. The turn-down tailpipes drop at the rear of the transmission and eliminates full length tailpipes to maximize the sound level and allow for extra clearance for wide tires and modified suspensions. This mandrel-bent system is designed to mount behind the factory catalytic converters, or most factory style aftermarket H-pipes. The Outlaw Extreme system delivers a super aggressive interior and exterior tone and is suited to the enthusiast who wants the most aggressive components they can purchase. Like all Flowmaster® systems, the benefits include improved throttle response and power. Designed for an easy fit, these systems include all necessary parts and hardware for easy installation. Note: Ideal for off-road racing use.- Dyno Tuned for Maximum Performance
- True Dual System with Turndowns
- Race Proven Outlaw Mufflers
- Stainless Steel Construction
- Lifetime Limited Warranty
- Flowmaster Quality
Part TypeExhaust System
BrandFLOWMASTER
Package Height9.0
Package Width15.5
Package Length49.25
Weight25.0 PG
Muffler Body Diameter4.50 in.
Muffler Inlet Inside Diameter2.50 in.
Hangers IncludedYes
Main Piping Diameter2.50 in.
Tail Pipe QuantityDual
Inlet TypeFlanged
Exhaust Tip Material409 Stainless Steel
Catalytic Converter Quantity0
Tip FinishNatural
Muffler Body Length11 in.
Sound LevelAggressive
Muffler Body Material304 Stainless Steel
Exhaust Tip CutSquare
Gasket Or Seal IncludedNo
Pipe ColorSilver
Muffler Quantity2
Muffler Inlet Outside Diameter2.63 in.
Muffler Flanged OutletNo
Tip Quantity2
Exhaust TypeSingle
Catalytic Converter IncludedNo
Heat Shield IncludedNo
Part CategoryPerformance Parts
Exhaust Tip Quantity0
Exhaust Tip FinishNatural
Exhaust Tip EdgeCut
Valve IncludedNo
Muffler TypeChambered
Pipe Material409 Stainless Steel
Muffler Body Width4.50 in.
Tail Pipe Tapered OutletNo
Muffler Body ShapeRound
Mounting Bracket IncludedNo
Muffler Outlet Quantity1
Muffler FinishNatural
Mount TypeUses Factory Hangers
Clamps IncludedYes
FinishNatural
Exit StyleDual Out Dumps
Muffler Body Height4.50 in.
Clamping TypeFlat Band
Muffler Flanged InletYes
Spring Bolt Kit IncludedNo
Muffler SeriesOutlaw
Muffler IncludedYes
Tail Pipe Outlet Outside Diameter2.50 in.
Valve TypeNot Applicable
Exhaust Tip Diameter2.50 in.
Part FitmentDirect Fit
Vendor Part Number817682
Package Qty1
Package TypeEA
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