FA20
The FA20 boxer 4-cylinder is found in a multitude of Subaru vehicles ranging from the Subaru BRZ to the Subaru WRX. We have discussed the popular Subaru engine at length. Some popular topics include FA20 Common Problems, head-to-head comparisons with other engines like the EJ257, and FA20DIT Turbo Upgrades. If you are interested in learning more about the FA20 engine, you are in the right place.