What is ej251?

The Subaru EJ251 is a 2.5-liter, naturally aspirated, four-cylinder boxer engine that was produced by Subaru for the North American market. It was used in various Subaru models, including the Legacy, Outback, and Impreza. The EJ251 engine features double overhead camshafts, 16 valves, and multi-point fuel injection. It produces around 165 horsepower and 166 lb-ft of torque. The EJ251 is known for its reliability and durability, making it a popular choice among Subaru enthusiasts.