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Flowmaster 2018-2019 Ford Mustang Outlaw Series™ Axle Back Exhaust System 817821

Flowmaster 2018-2019 Ford Mustang Outlaw Series™ Axle Back Exhaust System 817821
Flowmaster 2018-2019 Ford Mustang Outlaw Series™ Axle Back Exhaust System 817821Flowmaster 2018-2019 Ford Mustang Outlaw Series™ Axle Back Exhaust System 817821Flowmaster 2018-2019 Ford Mustang Outlaw Series™ Axle Back Exhaust System 817821Flowmaster 2018-2019 Ford Mustang Outlaw Series™ Axle Back Exhaust System 817821Flowmaster 2018-2019 Ford Mustang Outlaw Series™ Axle Back Exhaust System 817821
$1,234.99 ea
NEWARRIVING SOONEstimated Ship Date 10/16/2023 (If Ordered Today)28 available from HOLLEY PERFORMANCE PRODUCTS as of 09/23/2023
Model: 4005480
Select a Vehicle or refer to the Vehicle Fitment Tab below to verify that this part fits your vehicle.
OVERSIZE 2
This Flowmaster Outlaw Axle-back exhaust system is specifically designed for the 2018 and 2019 Ford Mustang GT coupe and convertible with the 5.0L engines. This system features the race proven Outlaw mufflers for a very aggressive exterior sound level with noticeable interior sound. The system utilizes 3.00 in. mandrel bent 409S stainless steel tubing with 4.00 in. polished stainless steel tips for an aggressive look that matches the sound level. This system is designed for vehicles without active exhaust valves and includes all the necessary hardware to complete the installation.
Features:
  • Large 4 in. Polished Stainless Steel Tips
  • Aggressive Race Proven Outlaw Mufflers
  • Dyno-Tuned For Maximum Performance
  • Large Mandrel-Bent 3 in. Tubing
  • Full Stainless Steel Construction
  • Easy Installation
Holley Performance Emission Code 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
Installation Notes:
Fits 2018-2021 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
FM_Warranty_General.pdf88.58KB
NAFTA_COO-2013.pdf105.94KB
817821.pdf522.99KB
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 Fitment Notes
Ford Mustang GT Premium 2018 5.0L / 302 / V8 Dual; Dual Rear Exit; Incl. 3 in. Tubing/Outlaw(TM) Mufflers/4.0 in. Quad 304 Stainless Tips; 409 Stainless Steel;50 State Legal / California Emissions Compliant
Fits Vehicles w/o Factory Active Exhaust Valves
Ford Mustang GT Premium 2019 5.0L / 302 / V8 Dual; Dual Rear Exit; Incl. 3 in. Tubing/Outlaw(TM) Mufflers/4.0 in. Quad 304 Stainless Tips; 409 Stainless Steel;50 State Legal / California Emissions Compliant
Fits Vehicles w/o Factory Active Exhaust Valves
Ford Mustang GT 2018 5.0L / 302 / V8 Dual; Dual Rear Exit; Incl. 3 in. Tubing/Outlaw(TM) Mufflers/4.0 in. Quad 304 Stainless Tips; 409 Stainless Steel;50 State Legal / California Emissions Compliant
Fits Vehicles w/o Factory Active Exhaust Valves
Ford Mustang GT 2019 5.0L / 302 / V8 Dual; Dual Rear Exit; Incl. 3 in. Tubing/Outlaw(TM) Mufflers/4.0 in. Quad 304 Stainless Tips; 409 Stainless Steel;50 State Legal / California Emissions Compliant
Fits Vehicles w/o Factory Active Exhaust Valves

Specifications:

California Proposition 65 Chemical Name Chromium (hexavalent compounds)
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
Exhaust Type Axle-Back
Exit Position Dual Rear
Heat Shield No
Inlet Inside Diameter 3.000 in.
Material 409S Stainless Steel
Mount Type Uses Factory Hangers
Muffler Body Length 6.500 in.
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
Single Dual Dual
Sound Level Aggressive
System Type Axle-back
Tail Pipe Diameter 3.000 in.
Tip Cut Angle
Tip Diameter 4.000 in.
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 3.000 in.
Tubing Diameter (in) 3
Tubing Material 409S Stainless Steel
WARNING CA Proposition 65 WARNING: Cancer and Reproductive Harm

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Flowmaster 2018-2019 Ford Mustang Outlaw Series™ Axle Back Exhaust System 817821:
Mustang Depot 2023