GDB Subaru WRX STi Spec-C E-Type ECU 22611AJ820 – OEM JDM ECU for EJ207 6MT (04.6–05.5)

Complete your Spec-C build the right way with this genuine JDM OEM Subaru ECU, part number 22611AJ820, originally equipped on the GDB WRX STi Spec-C E-Type (mid-2004 to mid-2005) paired with the EJ207 engine and 6-speed manual transmission (6MT). Imported directly from Japan and sold by J-Spec Auto Sports Inc., this ECU is a rare and highly sought-after control unit for authentic JDM STI swaps and restorations.

This Spec-C ECU is factory-calibrated for high-revving EJ207 operation, aggressive ignition timing, proper fueling, and AVCS control, matched specifically to the Spec-C lightweight drivetrain and 6MT configuration. Unlike standard WRX or STI ECUs, the 22611AJ820 features Spec-C-specific tuning, making it the correct choice for enthusiasts who want OEM performance without compromises.

Ideal for Version 8 Spec-C swaps, ECU replacement, or period-correct restorations, this unit ensures correct engine behavior when paired with the proper JDM wiring harness, sensors, and drivetrain. Using the correct ECU is critical on EJ207 builds to avoid drivability issues, CELs, or incorrect boost and timing behavior.

Each ECU sold by J-Spec Auto Sports is tested, verified, and confirmed authentic, ensuring you receive a genuine Subaru control unit — not a reflash, clone, or aftermarket substitute. With Spec-C electronics becoming increasingly difficult to source, this ECU represents both functional value and collector appeal.

Key Features:

• Genuine JDM OEM Subaru ECU

• Part Number: 22611AJ820

• Fits GDB WRX STi Spec-C E-Type (04.6–05.5)

• Designed for EJ207 + 6-Speed Manual Transmission

• Factory Spec-C Subaru tuning (OEM calibration)

• Ideal for JDM swaps, restorations, or ECU replacement

• Rare and hard to find

Why Buy from J-Spec Auto Sports Inc.?

J-Spec Auto Sports Inc. specializes in authentic JDM Subaru engines, ECUs, transmissions, and drivetrain components. Our reputation is built on honest descriptions, proper testing, and sourcing real Japanese parts trusted by enthusiasts and professional shops nationwide.

 Nationwide shipping available
 Limited availability — Spec-C ECUs sell fast

Secure this JDM GDB WRX STi Spec-C ECU (22611AJ820) today from J-Spec Auto Sports Inc. and finish your EJ207 build the correct OEM way.