Whether you're looking to squeeze some extra horsepower and torque out of your 2015-2023 Mustang 2.3L EcoBoost or just want to give it a wicked sound, and exhaust upgrade or two is sure to help. Axle-Backs, Cat-Backs, and Resonator deletes will give your EcoBoost Pony a great exhaust note, while aftermarket downpipes will add power and torque with the right custom tuning. Ford Mustang Fitments: 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023 Ford Mustang 2.3L. Submodel Fitments: EcoBoost, EcoBoost Premium, Fastback, Convertible Some exceptions apply, please see individual product pages for specific fitments.