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2021, 2020, 2019, 2018 Ford Mustang Exhaust System Kit
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2018 - 2021 Ford Mustang Exhaust System Kit (Flowmaster) NEW

Out of Stock
$ 2,050 .42

Product Notes

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
American Thunder Axle Back Exhaust System
This Flowmaster(R) American Thunder(R) 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(R) 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.
Brand: Flowmaster
Condition: New
See Other Ford Mustang Exhaust System Kits
LIFE
TIME
Lifetime Warranty Included
This part is backed by our industry-leading lifetime warranty. Shop with total confidence.
100%money-back 120-dayreturns OE-gradequality
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Specifications & Info


Attribute Value
Catalytic Converter Included No
Exhaust Series American Thunder
Exhaust Type Axle-back
Exit Position Dual Out Rear
Heat Shield Attached No
Muffler Body Length 11.000 In.
Muffler Body Material 409s Stainless Steel
Muffler Color Black
Muffler Count 2
Muffler Finish Painted
Muffler Inlet Location Side
Muffler Outlet Location Dual
Muffler Overall Length 49.500 In.
Muffler Part Number Kit Only
Muffler Series 60 Series
Muffler Type Reflection
Sound Level Moderate/aggressive
System Type Axle Back
Tip Cut Angle
Tip Edge Style Cut
Tip Finish Polished
Tip Length 5.250 In.
Tip Logo Embossed
Tip Material 304 Stainless Steel
Tip Quantity 4
Tip Shape Round
Tip Type Double Wall
Tubing Material 409s Stainless Steel
WARNING CA Proposition 65 Yes

Vehicle Fitment Guide

This part fits the following vehicles:

Ford 1 model (tapclick to expand)(tapclick to hide)
Mustang 2018-2021 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Bullitt Coupe 2019 - 2020 V8 5.0L RWD Manual
EcoBoost Convertible 2018 - 2021 L4 2.3L Turbo RWD Automatic & Manual
EcoBoost Coupe 2018 - 2021 L4 2.3L Turbo RWD Automatic & Manual
EcoBoost Premium Convertible 2018 - 2021 L4 2.3L Turbo RWD Automatic & Manual
EcoBoost Premium Coupe 2018 - 2021 L4 2.3L Turbo RWD Automatic & Manual
GT Convertible 2019, 2021 V8 5.0L RWD Automatic & Manual
GT Coupe 2018 - 2021 V8 5.0L RWD Automatic & Manual
GT Premium Convertible 2018 - 2021 V8 5.0L RWD Automatic & Manual
GT Premium Coupe 2018 - 2021 V8 5.0L RWD Automatic & Manual
GT V8 Convertible 2019 - 2021 V8 5.0L RWD Automatic & Manual
GT V8 Coupe 2019 - 2021 V8 5.0L RWD Automatic & Manual
Mach 1 Coupe 2021 V8 5.0L RWD Automatic & Manual
Shelby GT350 Coupe 2018 - 2020 V8 5.2L RWD Manual
Shelby GT350R Coupe 2018 - 2020 V8 5.2L RWD Manual
Shelby GT500 Coupe 2020 - 2021 V8 5.2L Supercharged RWD Automatic Dual Clutch
V8 Convertible 2018 V8 5.0L RWD Automatic & Manual
V8 Coupe 2018 V8 5.0L RWD Automatic & Manual
Verify before ordering — please confirm your vehicle's year, make, model and sub-model specifications before placing your order. If anything is unclear, our customer service team is available to help.

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Shipping Information

We offer fast, reliable shipping on all orders:

  • Ships to all countries via US Postal Service Priority Mail.
  • Most orders ship within 1 business day.
  • Delivery time: 1-4 business days after shipment.
  • International shipping available, including APO/FPO addresses.
  • Tracking information provided for all shipments.
  • Additional handling fees may apply for oversized/overweight packages.

Return Policy

We want you to be 100% satisfied with your purchase. That's why we offer:

  • 120-Day Returns - Return any part within 120 days from date of receipt.
  • Must obtain RMA (Return Merchandise Authorization) number before returning.
  • Parts must be in original condition, uninstalled, unaltered, and in original packaging.
  • Important: Electrical parts are not returnable if unsealed.
  • Please inspect parts upon arrival and notify us within 5 days of receiving incorrect or damaged parts.
  • Refunds processed after warehouse receives return and credited to original payment method.

Warranty

This part comes with a limited lifetime warranty. Warranty begins on the original purchase date.

Warranty does NOT cover:

  • Shipping costs or labor expenses.
  • Installation errors.
  • Parts used for racing.
  • Commercial vehicle parts.
This Flowmaster(R) American Thunder(R) 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(R) 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.

Fits Years: 2018 2019 2020 2021

Fits Models: Mustang

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