ROUSH's newly-designed cold air intake for the 2018-2023 2.3L I-4 Ecoboost engine brings staggering performance increases that can be achieved with an installation that takes under an hour, with no calibration required! The ROUSH EcoBoost Cold Air Intake replaces the restrictive stock air intake, unlocking latent power and fuel efficiency. There's no need for calibration or a custom tune, as this CAI system was engineered, tested, and designed to work with the completely stock 2.3L I-4 engine! Paired with Ford's innovative EcoBoost engine, our ROUSH Cold Air Kit feeds cooler, denser air to the turbo, increasing overall power output, while also turning up the sound of your Mustang! Our kit provides more flow than the stock system at peak horsepower. Best of all, this system will not void your factory warranty!