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Vehicle Info NeededFLOWMASTERPART NUMBER: 389-817588
American Thunder Axle-Back Exhaust System 2013-2014 Ford Mustang GT 5.0L V8
$77995
Ships on Sep 04, 2026
Lowest Price GuaranteeFord Mustang V8
American Thunder Axle-Back Exhaust System2013-2014 Ford Mustang GT 5.0L V8 3" Tubing 4" Polished SS Tips Dual Rear Exit Super 44 Series Muffler 409S Stainless Steel
FLOWMASTER MUFFLERS 817588 Features:
The Flowmaster® American Thunder® Axle-back exhaust system for the 2013-2014 Ford Mustang GT is perfect for the person looking for an aggressive sound level outside of the car with a moderate interior tone at different rpms. This bolt-on emissions-legal system is for cars with the 5.0L engine and features 3.00-inch mandrel-bent tubing flowing into a pair of Super 44™ Series performance mufflers with 3.00-inch tailpipes for maximum performance and a deep powerful sound. The system is constructed from 409 stainless steel, uses the factory hanger locations and features large 4.00-inch polished stainless steel tips for a refined look. The system is covered by our Flowmaster Lifetime Limited Warranty and is designed for an easy fit and includes all necessary parts and hardware for installation. Note: This system fits coupes and convertibles.- Large 4.00-inch Polished Stainless Steel Tips
- Dyno Tuned For Maximum Performance
- Large 3.00-inch Mandrel-bent Tubing
- Uses the Factory Hanger Locations
- Super 44 Performance Mufflers
- Stainless Steel Construction
- Quick and Easy Installation
- Lifetime Limited Warranty
Part TypeExhaust System
BrandFLOWMASTER
Package Height14.4
Package Width14.9
Package Length35.2
Weight32.41 PG
Muffler Body Diameter9.75 in.
Tailpipe Diameter (In.)3
Muffler Inlet Inside Diameter3 in.
Hangers IncludedYes
Main Piping Diameter3 in.
Tail Pipe QuantityDual
Inlet TypeClamp-On
Tip CutSlant
Exhaust Tip Material304 Stainless Steel
Catalytic Converter Quantity0
Exit LocationSplit Rear
Inlet QuantityTwo
Muffler Body Length13 in.
Sound LevelAggressive
Muffler MaterialStainless steel
Muffler Body Material409 Stainless Steel
Exhaust Tip CutAngled
Gasket Or Seal IncludedNo
Exhaust Tip IntercooledNo
Pipe ColorBlack
System FinishNatural
Muffler Quantity2
Muffler Inlet Outside Diameter3 in.
Exit QuantityTwo
Tip MaterialStainless steel
Muffler Flanged OutletNo
Tip Quantity2
Exhaust Tip ResonatedNo
Exhaust TypeDual
Catalytic Converter IncludedNo
Heat Shield IncludedNo
Part CategoryPerformance Parts
Hardware IncludedYes
Exhaust Tip WallSingle Wall
Exhaust Tip Quantity2
Exhaust Tip FinishPolished
Exhaust Tip EdgeRolled Edge Angle Cut
Valve IncludedNo
Muffler TypeChambered
Pipe Material409 Stainless Steel
Muffler Body Width9.50 in.
Tail Pipe Tapered OutletNo
Muffler Body ShapeOval
Mounting Bracket IncludedNo
Muffler Outlet Quantity1
Muffler FinishBlack High-Temperature Paint Finish
Inlet Diameter2.75 in.
Clamps IncludedYes
Muffler StyleChambered
Tip Outlet Size4 in (101.6 mm)
FinishNatural
Exit StyleDual Out Rear
Muffler Body Height4 in.
Tip IncludedYes
Clamping TypeFlat Band
Muffler Flanged InletNo
Spring Bolt Kit IncludedNo
Muffler SeriesSuper 44 Series
QuantitySold as a kit
Muffler IncludedYes
Exhaust Tip ConnectionWelded
System StyleRear axle-back
Tail Pipe Outlet Outside Diameter3 in.
Muffler ConfigurationSingle inlet/Single outlet
System MaterialStainless steel
Valve TypeNot Applicable
Tip Edge StyleRolled edge
Tip ShapeRound
Intermediate Pipe Diameter2.75 in (69.85 mm)
Exhaust Tip Diameter4 in.
Part FitmentDirect Fit
Vendor Part Number817588
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
