Cat-back Exhaust for Mustang 2.3L EcoBoost 2015-22 | #422094 | Roush

Description

May 2025: Discontinued by Roush

This product has been discontinued by Roush. Once our remaining stock has sold, this will no longer be available.

ROUSH Cat-Back Exhaust
for Ford Mustang EcoBoost 2015-22

Manufactured by ROUSH® Performance #422094

The ROUSH Performance Cat-Back Exhaust Kit for the S550 2.3L EcoBoost Mustang is a great solution for anyone looking for a race-inspired and aggressive tone.

Ford’s engine choices for the 2015+ Mustangs offers a variety of high-performing, yet affordable & economic, options to suit any budget or sensibility. This includes their 2.3L I4 engine, which performs well beyond what their cylinder count would imply. However, Ford’s stock exhaust doesn’t quite have the aggressive tone or sound Mustang owners crave; this is where ROUSH Performance excels!

ROUSH Performance has a specially engineered this exhaust for 2015+ I4 2.3L Mustangs. Constructed from 304 stainless steel, this durable exhaust system is corrosion and stain resistant. Mandrel bending has been used during manufacturing to ensure high flow and reduced backpressure constantly throughout the system. This exhaust uses factory mounting points and will fit without requiring any modification or welding. This exhaust system also greatly improves the sound and performance of your Mustang with dual single-tip high-flow chambered mufflers and integrated mid-pipes.

To make sure this exhaust looks as good as it sounds, Roush also include two brand new round dual-wall exhaust tips, which are polished for superior corrosion resistance and are embossed with the ROUSH logo. Included will also be all necessary hardware to install this system.

Features:

• Fits the S550 Mustang with I4 2.3L EcoBoost engines.
• ROUSH-designed high-flow mufflers with single inlets/outlets.
• Race-Inspired, aggressive tone.
• Made from corrosion-resistant high grade 304 stainless steel.
• Full mandrel-bent piping for consistent flow.
• 4″ polished dual wall tips embossed with the ROUSH logo.
• Uses OEM hangers and mounting points.
• Requires no welding.
• Can be used with factory Ford rear valance.
• Integrated Y-pipe for increased flow.
• Includes all necessary hardware.
• 90-Day ROUSH Limited Parts Warranty.

Vehicle Applications:

• Ford Mustang S550 EcoBoost – 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022
• Coupe / fastback only. Not suitable for convertible models.