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

Flowmaster 2018-2023 Ford Mustang American Thunder Axle-Back Exhaust System 817799
Flowmaster 2018-2023 Ford Mustang American Thunder Axle-Back Exhaust System 817799Flowmaster 2018-2023 Ford Mustang American Thunder Axle-Back Exhaust System 817799Flowmaster 2018-2023 Ford Mustang American Thunder Axle-Back Exhaust System 817799Flowmaster 2018-2023 Ford Mustang American Thunder Axle-Back Exhaust System 817799Flowmaster 2018-2023 Ford Mustang American Thunder Axle-Back Exhaust System 817799Flowmaster 2018-2023 Ford Mustang American Thunder Axle-Back Exhaust System 817799Flowmaster 2018-2023 Ford Mustang American Thunder Axle-Back Exhaust System 817799Flowmaster 2018-2023 Ford Mustang American Thunder Axle-Back Exhaust System 817799
$2,993.99 ea
NEWARRIVING SOONEstimated Ship Date 08/05/2024 (If Ordered Today)15 Available from HOLLEY PERFORMANCE PRODUCTS as of 07/15/2024
Model: 4005470
Select a Vehicle or refer to the Vehicle Fitment Tab below to verify that this part fits your vehicle.
TRUCK
FREIGHT
This Flowmaster® American Thunder® Axle-back exhaust system is for 2018-2023 Ford Mustang GT coupes and convertibles with the 5.0L engine and Factory Active Performance Exhaust Option. System features include a pair of specially designed Outlaw® series mufflers giving you high flow with a moderately aggressive exterior and interior tone when the valves are closed, and an aggressive "wide open" exterior sound level when you open up the valves. Other features include large 3.00-inch mandrel-bent 409S stainless steel tubing for high flow, durability, and longevity. Add to that, a pair of our high-quality valves to accommodate the factory exhaust actuators for when you really want to open up the sound. The system is finished off with quad 4.00-inch polished 304 stainless steel tips for an aggressive look that demands attention, the same as the exhaust note. Includes all necessary parts, hardware and detailed instructions for an easy installation you can do at home. Covered by our Lifetime Limited Warranty. Note: Fits both coupes and convertibles.
Features:
  • Quad 4.00-inch Polished 304 Stainless Steel Tips
  • For Vehicles With Active Performance Exhaust Option
  • Aggressive Race-proven Outlaw Mufflers
  • Dyno Tuned for Maximum Performance
  • Uses the Factory Hanger Locations
  • Full Stainless Steel Construction
  • Straight-through Muffler Design
  • Lifetime Limited Warranty
  • Easy Installation
Fits 2018-2023 Mustang GT 5.0L Coupes & Convertibles with Factory Active Performance Exhaust Valves.
Installation Notes:
Fits 2018-2023 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
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 Bullitt 2019 5.0L / 302 / V8
Ford Mustang GT Premium 2018 5.0L / 302 / V8 Fits vehicles equipped with Active Performance Exhaust option
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 FITS VEHICLES WITH ACTIVE EXHAUST VALVES
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 Fits vehicles equipped with Active Performance Exhaust option
Ford Mustang GT 2019 5.0L / 302 / V8
Ford Mustang GT 2020 5.0L / 302 / V8
Ford Mustang GT 2021 5.0L / 302 / V8 FITS VEHICLES WITH ACTIVE EXHAUST VALVES
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

Specifications:

California Proposition 65 Chemical Name Chromium (hexavalent compounds), Nickel (Metallic)
California Proposition 65 Required Yes
Catalytic Converter Included No
Emission Code 5
Exhaust Series American Thunder
Exit Position Dual Out Rear
Heat Shield No
Material 409 Stainless Steel
Mount Type Uses Factory Hangers
Muffler Body Length (in) 11
Muffler Color Black
Muffler Finish Painted
Muffler Inlet Diameter (in) 3
Muffler Inlet Location Side
Muffler Material 409S Stainless Steel
Muffler Outlet Diameter (in) 3
Muffler Outlet Location Dual
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
Product Type Exhaust System
Proposition 65 www.P65Warnings.ca.gov
Single Dual Dual
Sound Level Aggressive / Moderate
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
Warranty Limted Lifetime (Lifetime)

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Flowmaster 2018-2023 Ford Mustang American Thunder Axle-Back Exhaust System 817799:
Mustang Depot 2024