How To Build A 350+HP Mustang EcoBoost It was only time before the muscle car segment broke into smaller, turbo engines. In 2015, Ford did exactly that with the 2.3L inline 4 turbo engine found in the S550 Mustang EcoBoost. The base models make an impressive 310 horsepower straight from the factory. However, the appeal with turbo engines is the ability to easily tune and mod … [Read more...] about Best Ford Mustang 2.3L EcoBoost Bolt-on Performance Mods