If your Mustang or Lincoln engine performance has taken a hit and the gas mileage is off, chances are it’s time to get your fuel injectors replaced. These Mustang 4.6L Fuel Injectors help your engine to run as smooth as butter by optimizing the flow rate of fuel to the engine and improving gas efficiency. These re-manufactured Lincoln & Mustang fuel injectors are sure to add years to your car’s life. Compatible with Lincoln & Mustang 4.6L & 5.4L.