IE1000 - Bosch 1000cc Injectors for Subaru EJ20 & EJ25
 
Your stock injectors were never the bottleneck you thought they weren't. They are now.
 
The Ichiban Engineering IE1000 is the entry point for anyone stepping past a stock Subaru EJ20 or EJ25 fuel system - Bosch-based, rated to 500whp on E85 (higher still on pump gas or E20), and built to actually deliver the number on the spec sheet, not just claim it.
 
Every set is flow matched, static and dynamic, on our in-house ASNU system to a strict 2% tolerance between injectors - because a mismatched set causes the exact tuning headaches an upgrade is supposed to solve. A flow data sheet ships with every set so your tuner isn't guessing.
 
Top hats are CNC machined from billet aluminum to our own spec, not generic stock hardware repurposed for a fitment it wasn't designed for.
 
Key Features
 
Bosch-Based Injector Core
Proven hardware, not an off-brand clone.
500whp Rating on E85
Higher headroom on pump gas or E20 blends.
CNC Billet Top Hats
Machined to our spec for a precise fitment.
Flow Matched to 2% Tolerance
Every set tested static and dynamic on our ASNU system before it ships.
Flow Data Sheet Included
Your tuner gets real numbers, not estimates.
 
What's in the Box
 
4x IE1000 1000cc Injectors
4x Pig Tail Connectors and Pins
Flow Matching Data Sheet
 
1-year limited warranty included.
 
⚙️ Fits Subaru WRX and STI EJ20 and EJ25
📧 For technical questions or custom orders contact sales@ichiban.engineering