A Double Overhead Camshaft (DOHC) is an engine design that features two camshafts located in the cylinder head. One camshaft controls the intake valves, while the other manages the exhaust valves. This setup allows for more precise timing of the valve movements, improving engine efficiency and performance. DOHC engines are commonly found in high-performance vehicles and are often associated with sports cars and racing. The design enables better airflow into and out of the engine, which can lead to increased power output and improved fuel efficiency compared to single overhead camshaft (SOHC) designs.