What is the main benefit of installing this Y-pipe?

This Y-pipe replaces your factory resonator, which is a key component for muffling sound. Removing it allows for a deeper, more aggressive, and race-inspired exhaust tone for your Mustang EcoBoost.

What material is the ROUSH Y-pipe made from?

The Y-pipe is constructed from high-grade, mandrel-bent 304 stainless steel. This material is chosen for its durability and resistance to corrosion, ensuring a long lifespan for the exhaust component.

Can I install this Y-pipe myself?

Yes, this Y-pipe is designed for a direct fit using OEM vehicle CAD data, making installation generally straightforward. It's intended to bolt up to your existing exhaust system, though checking local noise ordinances is recommended due to the increased sound.

ROUSH 2015-2019 Ford Mustang EcoBoost 2.3L Y-Pipe

Specifications

Brand: Roush
Part #: 422091
UPC: 844764006904

ROUSH 2015-2019 Ford Mustang EcoBoost 2.3L Y-Pipe

Name: ROUSH 2015-2019 Ford Mustang EcoBoost 2.3L Y-Pipe
Brand: Roush
Price: 255.99 USD
Availability: InStock

$255.99

On Backorder — Expected to ship by May 31, 2026

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

Fits 2015-2023 Ford Mustang EcoBoost 2.3L. Get a deep, aggressive exhaust sound by removing the factory resonator.

Key Features

Fits 2015-2023 Ford Mustang EcoBoost 2.3L.
Replaces the factory resonator for a deeper, more aggressive exhaust sound.
Made from 2.5-inch, mandrel-bent 304 stainless steel for improved flow and durability.
Designed using OEM vehicle CAD data for a precise fit.
Increases exhaust flow to help maximize horsepower and torque.

⚠️ 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 2015-2023

Product Details

If you're looking to give your 2015-2023 Ford Mustang EcoBoost 2.3L a more aggressive exhaust note, this Y-pipe from ROUSH is a solid option. It's designed to replace your factory resonator, which is a common restriction in the exhaust system, opening things up for a deeper, race-inspired sound.

This Y-pipe is made from 2.5-inch, mandrel-bent 304 stainless steel. Mandrel bending means the pipe maintains its diameter throughout the bend, which helps improve exhaust flow and reduce back pressure compared to crush bends. The 304 stainless steel is well-built and resists corrosion, so it should hold up well over time. ROUSH engineered this Y-pipe using the vehicle's original CAD data, so it's made to fit right on your Mustang without major modifications.

Installation is generally straightforward, as it's designed to bolt up to your existing exhaust system. Keep in mind that removing the resonator will make your exhaust louder, so it's a good idea to check your local noise ordinances before installing.