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Flowmaster

Flowmaster Outlaw Cat-back Exhaust System

2018-2021 Mustang GT 5.0L Coupes & Convertibles without Factory Active Performance Exhaust Valves.

Part # 817808 Be the first to write a review
Estimated shipping date: 02/04/2022
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$1,415.95
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$1,574.00
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The Flowmaster Outlaw® Cat-back exhaust system for the 2018-2021 Ford Mustang GT 5.0L is perfect for the person looking for a very aggressive exhaust tone inside and outside the vehicle, with all of the performance benefits that you would expect from Flowmaster®. This easy to bolt-on emissions-legal system features dual 3.00-inch stainless steel mandrel-bent tubing and our exclusive Scavenger® Series X-pipe for a deep unique tone and maximum power. Other features include a pair of our race-proven Outlaw Series mufflers finished off with quad 4.00-inch carbon fiber tips for a modern look. Like all Flowmaster systems, the benefits include improved throttle response, power and mileage. Designed for an easy fit, this system includes all necessary parts, hardware and installation instructions. Notes: This system does not fit models with the Active Performance Exhaust option. Vehicles with the Factory Active Performance Exhaust option will use system #817800.

Features:

  • Not For Vehicles With Active Exhaust Valves
  • Very Aggressive Interior & Exterior Sound
  • Dyno-Tuned for Maximum Performance
  • Our Exclusive Scavenger Series X-Pipe
  • Quad 4.00-inch Carbon Fiber Tips
  • Full Stainless Steel Construction
  • Lifetime Limited Warranty
  • Flowmaster Quality

About Flowmaster

Flowmaster® is a household name, and for good reason. They've built legendary exhaust systems and mufflers for decades, and now offer performance air intakes, catalytic converters, and headers to give your hot rod performance to match the iconic Flowmaster sound.

Brand Flowmaster
Catalytic Converter IncludedNo
Emission Code5
Exhaust SeriesOutlaw
Exit PositionDual Out Rear
Heat ShieldNo
Material409 Stainless Steel
Mount TypeUses Factory Hangers
Muffler Body Length (in)6.5
Muffler ColorBlack
Muffler FinishPainted
Muffler Inlet Diameter (in)3
Muffler Inlet LocationCentered
Muffler Material409S Stainless Steel
Muffler Outlet Diameter (in)3
Muffler Outlet LocationCentered
Muffler Overall Length (in)49.5
Muffler Part NumberKit Only
Muffler Quantity2
Muffler SeriesOutlaw
Muffler ShapeRound
Muffler TypeReflection
Product TypeExhaust System
Single DualDual
Sound LevelAggressive
System TypeCat-back
Tip CutAngle
Tip Diameter (in)4
Tip Edge StyleRolled
Tip FinishNatural
Tip Length (in)5.25
Tip LogoPrinted
Tip Material304 Stainless/Carbon Fiber
Tip Quantity4
Tip ShapeRound
Tubing Diameter (in)3
Tubing Material409S Stainless Steel
UPC700042037636
California Proposition 65 Chemical NameChromium (hexavalent compounds)
Nickel (Metallic)
California Proposition 65 RequiredYes
Part Number817808
5

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

Fits 2018-2021 Mustang GT 5.0L Coupes & Convertibles without Factory Active Performance Exhaust Valves.
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