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Flowmaster 2018-2019 Ford Mustang American Thunder Axle Back Exhaust System 817799

Flowmaster 2018-2019 Ford Mustang American Thunder Axle Back Exhaust System 817799
Flowmaster 2018-2019 Ford Mustang American Thunder Axle Back Exhaust System 817799Flowmaster 2018-2019 Ford Mustang American Thunder Axle Back Exhaust System 817799Flowmaster 2018-2019 Ford Mustang American Thunder Axle Back Exhaust System 817799Flowmaster 2018-2019 Ford Mustang American Thunder Axle Back Exhaust System 817799Flowmaster 2018-2019 Ford Mustang American Thunder Axle Back Exhaust System 817799Flowmaster 2018-2019 Ford Mustang American Thunder Axle Back Exhaust System 817799Flowmaster 2018-2019 Ford Mustang American Thunder Axle Back Exhaust System 817799Flowmaster 2018-2019 Ford Mustang American Thunder Axle Back Exhaust System 817799
$2,349.99 ea
NEWARRIVING SOONEstimated Ship Date 10/25/2023 (If Ordered Today)6 available from HOLLEY PERFORMANCE PRODUCTS as of 10/03/2023
Model: 4005470
Select a Vehicle or refer to the Vehicle Fitment Tab below to verify that this part fits your vehicle.
OVERSIZE 2
Flowmaster's American Thunder Axle-back exhaust system for the 2018 and 2019 Ford Mustang GT is perfect for the person looking for a moderate to aggressive sound level both inside and outside of the car, with all of the performance benefits that you would expect from Flowmaster. This bolt-on DOR (Dual Out Rear) emissions-legal system for cars with the 5.0L engine features a pair of Outlaw Series mufflers and dual mandrel bent 3.00 inch tailpipes for maximum performance. The mufflers include functional exhaust valves to work with the OE actuator motors to select between sound levels.The system is built out of 409S stainless steel and utilizes Quad 4.00 inch polished stainless steel tips with the Flowmaster logo embossed in them. This system fits vehicles equipped with Active Performance Exhaust Option. The exhaust system is covered by Flowmaster's Lifetime Limited Warranty. Designed for an easy fit, this system includes all necessary parts and hardware for installation. Note: This system fits hardtops and convertibles.
Features:
  • Mandrel Bent Tubing
  • Limited Lifetime Warranty
  • Aggressive Exterior Exhaust Tone
  • Incl. Hangers and Hardware For Easy Installation
  • Dual Out Rear Exit
  • Dyno Tuned for Maximum Performance
  • Premium Flowmaster Quality
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 with 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
817799_instructions.pdf2.64MB

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/Quad 4 in. Angle Cut Polished Tips; 409 Stainless Steel;50 State Legal / California Emissions Compliant
Fits Factory Active Exhaust Option
Ford Mustang GT Premium 2019 5.0L / 302 / V8 Dual; Dual Rear Exit; Incl. 3 in. Tubing/Quad 4 in. Angle Cut Polished Tips; 409 Stainless Steel;50 State Legal / California Emissions Compliant
Ford Mustang GT 2018 5.0L / 302 / V8 Dual; Dual Rear Exit; Incl. 3 in. Tubing/Quad 4 in. Angle Cut Polished Tips; 409 Stainless Steel;50 State Legal / California Emissions Compliant
Fits Factory Active Exhaust Option
Ford Mustang GT 2019 5.0L / 302 / V8 Dual; Dual Rear Exit; Incl. 3 in. Tubing/Quad 4 in. Angle Cut Polished Tips; 409 Stainless Steel;50 State Legal / California Emissions Compliant

Specifications:

California Proposition 65 Chemical Name Chromium (hexavalent compounds)
California Proposition 65 Chemical Name 1 Nickel (Metallic)
California Proposition 65 Chemical Name 2 Chromium (hexavalent compounds)
California Proposition 65 Required Yes
Catalytic Converter Included No
Emission Code 5
Exhaust Series American Thunder
Exhaust Type Axle-Back
Exit Position Dual Out Rear
Heat Shield No
Heat Shield Attached No
Inlet Inside Diameter 3.000 in.
Material 409 Stainless Steel
Mount Type Uses Factory Hangers
Muffler Body Length 11.000 in.
Muffler Body Length (in) 11
Muffler Body Material 409S Stainless Steel
Muffler Body Shape Oval
Muffler Color Black
Muffler Count 2
Muffler Finish Painted
Muffler Inlet Diameter 3.000 in.
Muffler Inlet Diameter (in) 3
Muffler Inlet Location Side
Muffler Material 409S Stainless Steel
Muffler Outlet Diameter 3.000 in.
Muffler Outlet Diameter (in) 3
Muffler Outlet Location Dual
Muffler Overall Length 49.500 in.
Muffler Overall Length (in) 49.5
Muffler Part Number Kit Only
Muffler Quantity 2
Muffler Series 60 Series
Muffler Shape Oval
Muffler Type Reflection
Part Type Exhaust System Kit
Single Dual Dual
Single or Dual Dual
Sound Level Moderate/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 5.250 in.
Tip Length (in) 5.25
Tip Logo Embossed
Tip Material 304 Stainless Steel
Tip Quantity 4
Tip Shape Round
Tip Type Double Wall
Tubing Diameter 3.000 in.
Tubing Diameter (in) 3
Tubing Material 409S Stainless Steel
WARNING CA Proposition 65 WARNING: Cancer and Reproductive Harm
Warranty Limted Lifetime (Lifetime)

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Flowmaster 2018-2019 Ford Mustang American Thunder Axle Back Exhaust System 817799:
Mustang Depot 2023