DeatschWerks 02J-00-1000-4 1000cc Side Feed Injectors 04-06 Subaru STI EJ25

Vehicle Fitment

• 2004-2006 Subaru Impreza WRX STI - EJ25 Engine
• 2004-2006 Subaru Legacy GT - EJ25 Engine
• 1997-1998 Subaru Impreza 2.5 RS - EJ25 Engine

Fitment Notes

• IMPORTANT: This injector set does NOT fit any other STI model years - fitment is strictly limited to 2004-2006 STI and 2004-2006 Legacy GT EJ25 applications as listed above
• Side feed injector style - designed as a direct drop-in replacement for the OEM EJ25 side feed fuel rail without modification
• JECS connector shape - connects directly to the factory injector wiring harness with no adapter required
• Not legal for sale or use in California (not CARB compliant) - not intended for street use on emissions-regulated vehicles
• Professional tuning (ECU recalibration) is required after installation to properly account for the increased injector flow rate

Features

• 1000 cc/min flow rate - significant capacity increase over the factory injectors for supporting high-power EJ25 builds
• Side feed design for direct OEM-style fitment into the factory EJ25 fuel rail - no rail modification required
• Dynamic flow matched as a set and balanced to within 1-2% for consistent cylinder-to-cylinder fueling and a smooth idle
• JECS connector for direct plug-in compatibility with the factory Subaru injector harness
• Application-specific design minimizes tuning time and reduces fitment complications vs. universal injectors
• Flow report included - documents each injector's matched flow data for tuner reference

Specifications

• Flow Rate: 1000 cc/min
• Injector Style: Side Feed
• Connector: JECS
• Quantity: Set of 4
• Flow Matching Tolerance: ±1-2%
• Includes: Flow report
• Application: 2004-2006 Subaru STI EJ25 | 2004-2006 Legacy GT EJ25 | 1997-1998 Impreza 2.5 RS
• Warranty: 36 Months (3 Years)

Included Components

• 4x DeatschWerks 1000cc Side Feed Fuel Injectors
• Flow report documenting matched injector data

Product Description

The DeatschWerks 02J-00-1000-4 is a matched set of four 1000cc side feed fuel injectors purpose-built for the 2004-2006 Subaru WRX STI and Legacy GT EJ25, and the 1997-1998 Impreza 2.5 RS. At 1000 cc/min, these injectors deliver a substantial flow increase over the factory units to support heavily modified EJ25 builds running upgraded turbos, higher boost, and aggressive fuel maps. The side feed design drops directly into the OEM EJ25 fuel rail and factory wiring harness without modification - the JECS connector plugs straight into the factory harness, and no adapter hardware is needed.

Every set is dynamically flow matched and balanced to within 1-2% across all four injectors, ensuring consistent fueling across all cylinders for a stable idle and smooth power delivery throughout the RPM range. A flow report is included with each set for reference during tuning. Professional ECU recalibration is required after installation. Backed by DeatschWerks' 3-year warranty, the 02J-00-1000-4 is a proven choice for EJ25 builds that have outgrown the factory fuel system - just be aware that fitment is strictly limited to the specific years listed; this injector does not fit any other STI model years.