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Flowmaster 2018-2023 Ford Mustang Outlaw Axle-Back Exhaust System 817821

Flowmaster 2018-2023 Ford Mustang Outlaw Axle-Back Exhaust System 817821
Flowmaster 2018-2023 Ford Mustang Outlaw Axle-Back Exhaust System 817821Flowmaster 2018-2023 Ford Mustang Outlaw Axle-Back Exhaust System 817821Flowmaster 2018-2023 Ford Mustang Outlaw Axle-Back Exhaust System 817821Flowmaster 2018-2023 Ford Mustang Outlaw Axle-Back Exhaust System 817821
$1,396.99 ea
NEWARRIVING SOONEstimated Ship Date 08/08/2024 (If Ordered Today)29 Available from HOLLEY PERFORMANCE PRODUCTS as of 07/19/2024
Model: 4005480
Select a Vehicle or refer to the Vehicle Fitment Tab below to verify that this part fits your vehicle.
OVERSIZE 2
The Flowmaster® Outlaw axle-back exhaust system is specifically designed for the 2018-2023 Ford Mustang GT coupe and convertible with the 5.0L engine. This bolt-on system is constructed of 3.00-inch mandrel-bent 409S stainless steel tubing flowing into a pair of our race-proven Outlaw® mufflers for an aggressive exterior sound with a noticeable interior sound level. The 3.00-inch tailpipes exit through the factory cutouts in the rear valance and are finished off with quad 4.00-inch polished stainless steel tips giving your Pony an aggressive look that matches the sound. This axle-back system retains the factory resonator mid-pipe. Check out our optional Scavenger® Series No Resonator X-Pipe #817817 for even more sound and power. This Outlaw system is designed for vehicles without active exhaust valves and uses the factory hanger locations for any easy installation you can do at home in about an hour. Includes easy to follow instructions and all necessary hardware needed. Note: Requires cutting the factory mufflers from the mid-pipe for installation.
Features:
  • Large 4.00-inch Polished 304 Stainless Steel Tips
  • Aggressive Race Proven Outlaw Mufflers
  • Dyno-tuned for Maximum Performance
  • Uses the Factory Hanger Locations
  • Full Stainless Steel Construction
  • Lifetime Limited Warranty
  • Easy Installation
Fits 2018-2023 Mustang GT 5.0L Coupes & Convertibles without Factory Active Performance Exhaust Valves.
Installation Notes:
Fits 2018-2023 Mustang GT 5.0L Coupes & Convertibles without Factory Active Performance Exhaust Valves.

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
817821_instructions.pdf1.62MB

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 Mustang Bullitt 2019 5.0L / 302 / V8
Ford Mustang Bullitt 2020 5.0L / 302 / V8
Ford Mustang GT Premium 2018 5.0L / 302 / V8
Ford Mustang GT Premium 2019 5.0L / 302 / V8
Ford Mustang GT Premium 2020 5.0L / 302 / V8
Ford Mustang GT Premium 2021 5.0L / 302 / V8
Ford Mustang GT Premium 2022 5.0L / 302 / V8
Ford Mustang GT Premium 2023 5.0L / 302 / V8
Ford Mustang GT V8 2019 5.0L / 302 / V8
Ford Mustang GT V8 2020 5.0L / 302 / V8
Ford Mustang GT 2018 5.0L / 302 / V8
Ford Mustang GT 2019 5.0L / 302 / V8
Ford Mustang GT 2020 5.0L / 302 / V8
Ford Mustang GT 2021 5.0L / 302 / V8
Ford Mustang GT 2022 5.0L / 302 / V8
Ford Mustang GT 2023 5.0L / 302 / V8
Ford Mustang Mach 1 2022 5.0L / 302 / V8
Ford Mustang Mach 1 2023 5.0L / 302 / V8
Ford Mustang V8 2018 5.0L / 302 / V8

Specifications:

California Proposition 65 Chemical Name Chromium (hexavalent compounds), Nickel (Metallic)
California Proposition 65 Chemical Name 1 Nickel
California Proposition 65 Chemical Name 2 Chromium
California Proposition 65 Required Yes
Catalytic Converter Included No
Emission Code 5
Exhaust Series Outlaw
Exit Position Dual Out Rear
Heat Shield No
Material 409 Stainless Steel
Mount Type Uses Factory Hangers
Muffler Body Length (in) 6.5
Muffler Color Black
Muffler Finish Painted
Muffler Inlet Diameter (in) 3
Muffler Inlet Location Centered
Muffler Material 409S Stainless Steel
Muffler Outlet Diameter (in) 3
Muffler Outlet Location Centered
Muffler Overall Length (in) 49.5
Muffler Part Number Kit Only
Muffler Quantity 2
Muffler Series Outlaw
Muffler Shape Round
Muffler Type Reflection
Part Type Exhaust System Kit
Product Type Exhaust System
Proposition 65 www.P65Warnings.ca.gov
Single Dual Dual
Sound Level Aggressive
System Type Axle-back
Tip Cut Angle
Tip Diameter (in) 4
Tip Edge Style Cut
Tip Finish Polished
Tip Length (in) 5.25
Tip Logo Embossed
Tip Material 304 Stainless
Tip Quantity 4
Tip Shape Round
Tubing Diameter (in) 3
Tubing Material 409S Stainless Steel

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Flowmaster 2018-2023 Ford Mustang Outlaw Axle-Back Exhaust System 817821:
Mustang Depot 2024