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2015-20 Ford F-150 3.5L Ecoboost - Outlaw Cat-back Exhaust 817756YouTube Button

Flowmaster Outlaw Cat-back Exhaust System

Fits 2015-2020 Ford F-150 with 2.7L/3.5L Ecoboost.

PART# 817756

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$795.00   Suggested Retail
$714.95   Your Price
Estimated shipping date: 11/30/2020
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Aggressive sound


The new Flowmaster® Outlaw® Cat-back exhaust system for the 2015-2020 Ford F-150 trucks is perfect for the person looking for an aggressive sound level outside and inside the truck with all of the performance benefits that you would expect from Flowmaster. This bolt-on emissions-legal system is custom built for trucks with the 2.7L or 3.5L Ecoboost engines and features a race proven Outlaw Series muffler and a large mandrel-bent 4.00-inch mandrel-bent tailpipe for maximum performance and tone. The system is constructed from 409S stainless steel and utilizes a large 5.00-inch black ceramic coated stainless steel tip. The exhaust system is covered by Flowmaster's Lifetime Limited Warranty, is designed for an easy fit and includes all necessary parts and hardware for an easy installation you can do at home. Note: Fits all 2/4 wd.


  • Dyno Tuned For Maximum Performance
  • Uses the Factory Hanger Locations
  • All Stainless Steel Construction
  • Race-proven Outlaw Muffler
  • Quick and Easy Installation
  • Lifetime Limited Warranty
  • Flowmaster Quality


Catalytic Converter IncludedNo
Emission Code5
Exhaust SeriesOutlaw
Exit PositionSingle Side Exit
Heat ShieldNo
Material409 Stainless Steel
Mount TypeUses Factory Hangers
Muffler FinishBlack
Muffler Inlet Diameter (in)4
Muffler Material409S Stainless Steel
Muffler Outlet Diameter (in)4
Muffler Part NumberKit Only
Muffler Quantity1
Muffler SeriesOutlaw
Muffler ShapeRound
Muffler TypeWelded Baffle
Product TypeExhaust System
Single DualSingle
Sound LevelAggressive
System TypeCat-back
Tip CutAngle
Tip Diameter (in)5
Tip Edge StyleRolled
Tip FinishCeramic Coated Black
Tip Length (in)13
Tip LogoEmbossed
Tip Material304 Stainless
Tip Quantity1
Tip ShapeRound
Tubing Diameter (in)4
Tubing Material409S Stainless Steel
California Proposition 65 Chemical NameChromium (hexavalent compounds)
Nickel (Metallic)
California Proposition 65 RequiredYes
Part Number817756



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.

Tech Resources

Fits all 2/4 WD and wheelbases, Except Std Cab/Short Bed and Ford Raptor.


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