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