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Flowmaster 2013-2014 Ford Mustang Outlaw Cat-Back Exhaust System 817590

Flowmaster 2013-2014 Ford Mustang Outlaw Cat-Back Exhaust System 817590
Flowmaster 2013-2014 Ford Mustang Outlaw Cat-Back Exhaust System 817590Flowmaster 2013-2014 Ford Mustang Outlaw Cat-Back Exhaust System 817590Flowmaster 2013-2014 Ford Mustang Outlaw Cat-Back Exhaust System 817590Flowmaster 2013-2014 Ford Mustang Outlaw Cat-Back Exhaust System 817590
$2,379.99 ea
NEWARRIVING SOONEstimated Ship Date 07/23/2025 (If Ordered Today)20 Available from HOLLEY PERFORMANCE PRODUCTS as of 07/06/2025
Model: 4005378
Select a Vehicle or refer to the Vehicle Fitment Tab below to verify that this part fits your vehicle.
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Introducing the Flowmaster Outlaw® Cat-back exhaust system for the 2013-2014 Ford Mustang GT with 5.0L engine. This system is perfect for the person looking for a deep powerful exterior sound while maintaining a moderate interior sound level with all of the performance benefits that you would expect from Flowmaster®. New features include dual 3.00-inch mandrel-bent stainless steel tubing flowing into a Scavenger Series® X-pipe for maximum performance and a deep unique muscle tone. The Scavenger Series X-pipe then flows into a pair of race-proven Outlaw® mufflers and out into the dual 3.00-inch mandrel-bent tailpipes. The tailpipes use the factory hanger locations and are finished off with large 4.00-inch polished stainless steel tips to complement the factory cutouts. Designed for an easy installation this system includes all necessary parts, hardware, and detailed instructions. Note: Fits Coupes and Convertibles.
Features:
  • Includes our Exclusive Scavenger Series X-pipe
  • Very Aggressive Interior & Exterior Sound
  • Uses the Factory Hanger Locations
  • Dyno Tuned For Maximum Power
  • Race-proven Outlaw Mufflers
  • Stainless Steel Construction
  • Lifetime Limited Warranty
Fits 2013-2014 Ford Mustang GT 5.0L Coupes & Convertibles.
Installation Notes:
Fits 2013-2014 Ford Mustang GT 5.0L Coupes & Convertibles.
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
817590.pdf111.14KB

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 Mustang GT 2013 5.0L / 302 / V8
Ford Mustang GT 2014 5.0L / 302 / V8

Specifications:

2WD/4WD RWD
California Proposition 65 Chemical Name Chromium (hexavalent compounds), Nickel (Metallic)
California Proposition 65 Required Yes
Emission Code 5
Exhaust Series Outlaw
Exit Position Dual Out Rear
Heat Shield No
Inlet Diameter (in) 3
Material 409 Stainless Steel
Muffler Part Number Kit Only
Muffler Quantity 2
Muffler Series Outlaw
Outlet Diameter (in) 3
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
Tip Diameter (in) 4
Tip Quantity 2
Tubing Diameter (in) 3
Warranty Limited Lifetime (Lifetime)

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