IE1600 - Bosch 1600cc Injectors for Subaru EJ20 & EJ25  

Big turbo builds expose weak fuel systems fast. This isn't one.  

The Ichiban Engineering IE1600 is built for the Subaru EJ20 or EJ25 running a serious single or big-turbo setup - Bosch-based, rated to 800whp on E85, and tested to the same standard as every injector we build.  

Every set is flow matched, static and dynamic, on our ASNU system to a strict 2% tolerance, with a flow data sheet included so your tuner isn't working blind.  

Top hats are CNC machined from billet aluminum to our own spec, built for the fitment, not adapted to it.  

Key Features  

• Bosch-Based Injector Core Proven hardware, consistent across our full lineup.

• 800whp Rating on E85 Built for big-turbo Subaru builds, not entry-level bolt-ons.

• CNC Billet Top Hats Machined to our spec for a precise fitment.

• Flow Matched to 2% Tolerance Tested static and dynamic before it ships.

• Flow Data Sheet Included Real numbers, not estimates, for your tuner.  

What's in the Box  

• 4x IE1600 1600cc Injectors

• 4x Pig Tail Connectors and Pins

• Flow Matching Data Sheet  

1 year limited warranty included.  

⚙️ Fits Subaru WRX and STI EJ20 & EJ25 📧 For technical questions or custom orders contact sales@ichiban.engineering