The 2015 Ford Mustang EcoBoost Engine Bay Previous 5 / 5 A close up look at the nose of the EcoBoost powered 2015 Ford Mustang A close up look at the nose of the EcoBoost powered 2015 Ford Mustang, showing the differences between the 4-cylinder and V8 front ends. Previous 5 / 5 Our first good look at the new 2.3L EcoBoost engine under the hood of the 2015 Ford Mustang. Your name * E-mail * The content of this field is kept private and will not be shown publicly. Subject Comment *