550cc Fuel Injectors for Subaru STI 2.5L Turbo - Bosch EV14 High Performance Set
Proudly Accepting
Precision-engineered for the Subaru STI 2.5L Turbo, SouthBay’s 550cc Bosch EV14 Fuel Injectors are the ultimate modern upgrade. These injectors offer superior fuel atomization and a faster response time compared to older factory units, ensuring a smoother idle and consistent power delivery. This set is a direct fit for the 2.5L EJ257 engine and includes all necessary seals for a leak-free installation.
Modern Fueling for the EJ257 2.5L Turbo
Upgrade your Subaru’s fueling system with SouthBay’s 550cc fuel injector set. Utilizing genuine Bosch EV14 technology, these injectors are designed to provide the exact flow rate needed for stock or mildly modified 2.5L STI engines. The multi-hole nozzle design ensures a fine fuel mist, which leads to more efficient combustion, improved throttle response, and easier cold starts.
Plug-and-Play Compatibility
These injectors are specifically selected for the Subaru 2.5L Turbo platform. They are high-impedance, meaning they are compatible with your factory ECU without the need for a resistor box. Each set is dynamically flow-matched within 1% to ensure balanced fueling across all four cylinders, which is critical for engine longevity in turbocharged applications.
Vehicle Fitment:
-
Subaru Impreza WRX STI: 2004–2021 (2.5L Turbo EJ257)
-
Subaru Forester XT: 2004–2013 (2.5L Turbo)
-
Subaru Legacy GT: 2005–2012 (2.5L Turbo)
-
Subaru Outback XT: 2005–2009 (2.5L Turbo)
Technical Specifications:
-
Flow Rate: 550cc/min at 43.5 PSI.
-
Core Technology: Genuine Bosch EV14 (High Impedance).
-
Fitment: Top-feed configuration.
-
Included Hardware: Viton upper and lower O-rings.
