What is the difference between the sound modes?

The Roush Active Exhaust system offers four distinct sound modes. These range from a quieter, more subdued tone for daily driving to a louder, more aggressive V8 rumble for when you want to unleash the sound. You can also create custom sound profiles using the companion iOS app.

What material is the exhaust system made from?

The exhaust system is constructed from corrosion-resistant T-304 stainless steel. This material is chosen for its strength and ability to withstand the elements, ensuring the exhaust system lasts.

Does this exhaust kit come with everything needed for installation?

This kit includes the active exhaust system, mufflers, valves, and the console-mounted selector switch. For installation, it's recommended to refer to the manufacturer's instructions for any additional hardware or tools that may be required.

Roush 2018-2023 Ford Mustang 5.0L V8 Active Exhaust Kit

Specifications

Brand: Roush
Part #: 422100
UPC: 844764006805

Roush 2018-2023 Ford Mustang 5.0L V8 Active Exhaust Kit

Name: Roush 2018-2023 Ford Mustang 5.0L V8 Active Exhaust Kit
Brand: Roush
Price: 3434.24 USD
Availability: InStock

$3434.24

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Fits 2018-2021 Ford Mustang. Roush Active Exhaust Kit for 5.0L V8 GT models, allowing custom sound control with 4 modes.

Key Features

Fits 2018-2021 Ford Mustang GT 5.0L V8.
Features electronically controlled valves for adjustable exhaust sound.
Includes four preset sound modes and a custom mode tunable via iOS app.
Constructed from corrosion-resistant T-304 stainless steel for durability.
High-flow mufflers and mandrel bends help improve exhaust flow.
Comes with a console-mounted selector switch with a brushed aluminum finish.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Fits this vehicle

Ford Mustang 2018-2021

Product Details

This is the Roush Active Exhaust Kit specifically for the 2018-2021 Ford Mustang GT with the 5.0L V8 engine. It gives you the ability to control the sound of your V8 rumble, letting you choose how aggressive or subtle you want your Mustang to be. It's designed to let you really hear that engine when you want to, and quiet it down when you don't.

What makes this kit stand out is its active valve system. You get dual high-flow mufflers and smooth mandrel bends made from corrosion-resistant T-304 stainless steel. The real magic is in the electronically controlled valves, which let you switch between four different sound modes. You can pick a preset mode or even create your own custom sound profile using the Roush Active Exhaust app for iOS. The kit includes a nice-looking console-mounted selector switch with a brushed aluminum finish, making it easy to change modes on the fly.

This system is a complete cat-back setup, meaning it replaces the exhaust from the catalytic converter back. It's built to fit right on your Mustang GT, giving you that signature Roush sound and the flexibility to adjust it to your liking. You'll also appreciate that it ships for free.