View post: EREV vs PHEV: Which One Is More Reliable In The Real World? Boxer engines feature flat, opposing pistons that move in opposite directions for smooth operation. Subaru and Porsche are ...

For over three decades, the EJ20 was the workhorse of Subaru, as the 2.0-liter flat four boxer engine would power models throughout the brand's lineup. However, it's the engine's generations of ...