Introduced in 1989, versions of the EJ20 were found in the Legacy, Impreza, and Outback. It's a four-cylinder boxer with an aluminum block and heads, and the engine's open deck design saved on ...

Most notable was the uprated EJ20 2-liter boxer engine, producing 300 hp. This was achieved through a different ECU tune and modified intake and a high performance exhaust system. The chassis was ...