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Flowmaster 2015-2020 Ford F-150 Outlaw Extreme Cat-Back Exhaust System 817917

Flowmaster 2015-2020 Ford F-150 Outlaw Extreme Cat-Back Exhaust System 817917
Flowmaster 2015-2020 Ford F-150 Outlaw Extreme Cat-Back Exhaust System 817917Flowmaster 2015-2020 Ford F-150 Outlaw Extreme Cat-Back Exhaust System 817917Flowmaster 2015-2020 Ford F-150 Outlaw Extreme Cat-Back Exhaust System 817917Flowmaster 2015-2020 Ford F-150 Outlaw Extreme Cat-Back Exhaust System 817917Flowmaster 2015-2020 Ford F-150 Outlaw Extreme Cat-Back Exhaust System 817917
$656.99 ea
NEWARRIVING SOONEstimated Ship Date 01/02/2026 (If Ordered Today)32 Available from HOLLEY PERFORMANCE PRODUCTS as of 12/17/2025
Model: 4005501
Select a Vehicle or refer to the Vehicle Fitment Tab below to verify that this part fits your vehicle.
OVERSIZE 2
STORE PICKUP
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Introducing our new Outlaw® Extreme Cat-back exhaust system for all 2015-2020 Ford F-150 with 2.7L/3.5L Ecoboost, 3.5L Ti VCT and 5.0L engines. This system delivers the ultimate aggressive exhaust note that will get you noticed. The system slips on the back side of the catalytic converter tubing and features a 3.00-inch race-proven Outlaw muffler and a mandrel-bent single dump style turndown exiting under the bed, for the ultimate deep and aggressive sound. The system is manufactured from 409 stainless steel for durability and uses the factory hanger locations for a quick and easy installation. As a Flowmaster® Outlaw extreme system, this will deliver a very aggressive sound both inside and outside the truck. Includes all necessary hardware and detailed instructions for a quick and easy installation. Notes: Fits all 2/4 wheel drive models and all wheelbases.
Features:
  • Race Proven Outlaw Muffler Technology
  • Extreme Sound for Extreme Lifestyles
  • Uses the Factory Hanger Locations
  • Stainless Steel Construction
  • Quick & Easy Installation
  • Lifetime Limited Warranty
2015-2020 Ford F-150, all 2.7L/3.5L Ecoboost, 3.5L Ti VCT and 5.0L engine. 2/4 WD, all Wheelbases
Installation Notes:
2015-2020 Ford F-150, all 2.7L/3.5L Ecoboost, 3.5L Ti VCT and 5.0L engine. 2/4 WD, all Wheelbases
About Flowmaster

Manufacturer of performance exhaust systems, mufflers, performance air intakes, turbo boost modules, catalytic converters, race mufflers, headers and numerous exhaust accessories for late model cars, trucks, off-road, Jeeps, SUV’s, classic muscle cars, powersports vehicles and more. Flowmaster® gives you lots of exhaust choices with 12 designs of chambered mufflers, 3 styles of our exclusive “laminar-flow” mufflers and a new line of FlowFX “straight-through” performance mufflers, along with 5 sound categories of exhaust systems, giving you the customer, the power to custom tailor the sound of your vehicle whether you prefer mild, moderate or aggressive tones and sound levels. Since 1983, Flowmaster is the company you can trust, and has led the industry in offering only the best products you can buy for your vehicles.

Downloads:

Download Name File Size
fm_warranty_general.pdf88.58KB
817917_instructions.pdf1.26MB

Videos:

Vehicle Fitment:

The Vehicle Fitment Guide is to be used as a general reference. The data has been provided by our suppliers and manufacturers and may contain errors or incorrect data. Always refer to a professional to verify correct fitment for your vehicle.
Make Model Submodel Years Engine
Ford F-150 King Ranch 2015 5.0L / 302 / V8
3.5L / 213 / V6
Ford F-150 King Ranch 2016 5.0L / 302 / V8
3.5L / 213 / V6
Ford F-150 King Ranch 2017 5.0L / 302 / V8
3.5L / 213 / V6
Ford F-150 King Ranch 2018 5.0L / 302 / V8
3.5L / 213 / V6
Ford F-150 King Ranch 2019 5.0L / 302 / V8
3.5L / 213 / V6
Ford F-150 King Ranch 2020 5.0L / 302 / V8
3.5L / 213 / V6
Ford F-150 Lariat 2015 2.7L / 164 / V6
3.5L / 213 / V6
5.0L / 302 / V8
Ford F-150 Lariat 2016 2.7L / 164 / V6
3.5L / 213 / V6
5.0L / 302 / V8
Ford F-150 Lariat 2017 2.7L / 164 / V6
3.5L / 213 / V6
5.0L / 302 / V8
Ford F-150 Lariat 2018 2.7L / 164 / V6
3.5L / 213 / V6
5.0L / 302 / V8
Ford F-150 Lariat 2019 2.7L / 164 / V6
3.5L / 213 / V6
5.0L / 302 / V8
Ford F-150 Lariat 2020 2.7L / 164 / V6
3.5L / 213 / V6
5.0L / 302 / V8
Ford F-150 Limited 2016 3.5L / 213 / V6
Ford F-150 Limited 2017 3.5L / 213 / V6
Ford F-150 Limited 2018 3.5L / 213 / V6
Ford F-150 Limited 2019 3.5L / 213 / V6
Ford F-150 Limited 2020 3.5L / 213 / V6
Ford F-150 Platinum 2015 3.5L / 213 / V6
5.0L / 302 / V8
Ford F-150 Platinum 2016 3.5L / 213 / V6
5.0L / 302 / V8
Ford F-150 Platinum 2017 3.5L / 213 / V6
5.0L / 302 / V8
Ford F-150 Platinum 2018 3.5L / 213 / V6
5.0L / 302 / V8
Ford F-150 Platinum 2019 3.5L / 213 / V6
5.0L / 302 / V8
Ford F-150 Platinum 2020 3.5L / 213 / V6
5.0L / 302 / V8
Ford F-150 Police Responder 2018 3.5L / 213 / V6
Ford F-150 Police Responder 2019 3.5L / 213 / V6
Ford F-150 Police Responder 2020 3.5L / 213 / V6
Ford F-150 SSV 2016 5.0L / 302 / V8
3.5L / 213 / V6
Ford F-150 SSV 2017 5.0L / 302 / V8
3.5L / 213 / V6
Ford F-150 SSV 2018 5.0L / 302 / V8
3.5L / 213 / V6
Ford F-150 SSV 2019 5.0L / 302 / V8
3.5L / 213 / V6
Ford F-150 SSV 2020 5.0L / 302 / V8
3.5L / 213 / V6
Ford F-150 XLT 2015 3.5L / 213 / V6
2.7L / 164 / V6
5.0L / 302 / V8
Ford F-150 XLT 2016 3.5L / 213 / V6
2.7L / 164 / V6
5.0L / 302 / V8
Ford F-150 XLT 2017 3.5L / 213 / V6
2.7L / 164 / V6
5.0L / 302 / V8
Ford F-150 XLT 2018 3.5L / 213 / V6
2.7L / 164 / V6
5.0L / 302 / V8
Ford F-150 XLT 2019 3.5L / 213 / V6
2.7L / 164 / V6
5.0L / 302 / V8
Ford F-150 XLT 2020 3.5L / 213 / V6
2.7L / 164 / V6
5.0L / 302 / V8
Ford F-150 XL 2015 2.7L / 164 / V6
3.5L / 213 / V6
5.0L / 302 / V8
Ford F-150 XL 2016 2.7L / 164 / V6
3.5L / 213 / V6
5.0L / 302 / V8
Ford F-150 XL 2017 2.7L / 164 / V6
3.5L / 213 / V6
5.0L / 302 / V8
Ford F-150 XL 2018 2.7L / 164 / V6
3.5L / 213 / V6
5.0L / 302 / V8
Ford F-150 XL 2019 2.7L / 164 / V6
3.5L / 213 / V6
5.0L / 302 / V8
Ford F-150 XL 2020 2.7L / 164 / V6
3.5L / 213 / V6
5.0L / 302 / V8

Specifications:

California Proposition 65 Chemical Name Chromium (hexavalent compounds), Nickel (Metallic)
California Proposition 65 Required Yes
Emission Code 5
Exhaust Series Outlaw Extreme
Exit Position Single Out - Dump
Material 409 Stainless Steel
Mount Type Uses Factory Hangers
Part Type Exhaust System Kit
Product Type Exhaust System
Proposition 65 www.P65Warnings.ca.gov
Single Dual Dual
Sound Level Aggressive
System Type Cat-back
Tubing Diameter (in) 3
Tubing Material 409S Stainless Steel

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Flowmaster 2015-2020 Ford F-150 Outlaw Extreme Cat-Back Exhaust System 817917: