This SLP billet head will really wake up that Fusion! Obviously they are pretty underpowered and this will make a huge difference in low end throttle response, midrange acceleration, and 3-4 peak horsepower. Simple bolt on installtion with removeable domes for changing compression ratio's. Can be used on stock or ported motors and does not require and EFI changes. Simply run premium pump fuel. Available for low and high elevation.