The 2.5-liter turbocharged EJ257 was designed for the United States Domestic Market 2004 Impreza WRX STI and features 300 horsepower and 300 lb-ft of torque. While Subaru is known for its four ...

Subaru killed off the WRX STI back in 2021 ... accessories that wouldn't have violated the warranty when new. The EJ257 ...