Shelby American has taken the wraps off its new tuning program for the Ford Mustang EcoBoost. The resulting Shelby GT EcoBoost features an aggressive body kit fronted with a carbon fiber front splitter, along with more carbon fiber on the hood and side skirts, as well as the grille inserts and rear spoiler. Additional details include sporty body stripes and 20-inch Venice WELD Racing wheels with Michelin Pilot Sport tires. Under the hood, the 2.3-liter EcoBoost four-cylinder engine features an optimized ECU and a sports exhaust system, developing 335 bhp (249 kW) when running on 91 octane fuel. Interior upgrades are limited to embroidered headrests, Shelby branded floor mats, illuminated door sill plates and an individually-numbered dash plaque. The entire tuning package costs $23,995, excluding the price of the base Mustang EcoBoost. Shelby says orders will be taken on a first-com, first-serve basis.