The Aeroflow Performance Subaru fuel rail is specifically designed to suit Subaru WRX, STI, Forester and Liberty models with EJ20 or EJ25 engines which feature a top feed injector and to suit AVCS solenoid (except for the early style vertical plug style). Proper fuel delivery is arguably one of the most critical components for those looking to make all the power they can safely. The OEM fuel rails are incredibly restrictive and impede the fuel delivery to the injectorsunder high fuel pressures. Manufactured with a large internal bore, these fuel rails can support all necessary engine power requirements, especially with three -8ORB ports fitted alongeach fuel rail. Designed to suit 14mm fuel injectors and available in a variety of anodized finishes.