What is fa20?

The FA20 is a 2.0-liter horizontally opposed (boxer) four-cylinder gasoline engine. It was developed by Subaru, and is commonly used in their vehicles, such as the Subaru BRZ, Subaru Impreza, and Subaru XV. The engine features overhead camshafts, direct fuel injection, and dual active valve control system, producing around 200-220 horsepower and 150-205 lb-ft of torque, depending on the application. The FA20 is known for its smooth power delivery, high-revving capabilities, and good fuel efficiency. It is commonly paired with either a 6-speed manual or automatic transmission, and is a popular choice among enthusiasts for its tuning potential and performance.