Elite 2500 + Subaru Liberty/Legacy Gen 4 3.0R & GT Plug ‘n’ Play Adaptor Harness Kit

Complete Tuning Solution for Gen 4 Legacy/Liberty

The Elite 2500 + Subaru Liberty/Legacy Gen 4 Plug ‘n’ Play Kit is the total package for the BL/BP chassis. Combining the Haltech Elite 2500 ECU with the specific parallel adapter harness, this kit provides complete engine control for both the 3.0R H6 and 2.5 GT Turbo models. It is the only way to reliably tune high-power builds on this platform while maintaining factory dashboard and body system functionality.

Engineering Deep-Dive: Mastering the EZ30 and EJ25

This kit excels in managing the complex variable cam timing and electronic throttle systems of the Gen 4 engines. The Elite 2500 handles the engine’s fueling, ignition, and boost control (for the GT) or VVL switching (for the 3.0R). The adapter harness bridges the factory wiring to the Haltech, allowing the OEM ECU to continue managing the instrument cluster, AC, and cruise control via CAN bus. This seamless integration is critical for a street car.

Operational Benefits: Unlocked Potential

For the 3.0R, this kit is the key to forced induction, allowing for proper fuel and ignition mapping under boost. For the GT, it offers superior boost control, flex-fuel capability, and engine protection compared to reflashing the stock ECU. The kit supports both manual and automatic transmissions (automatic shifting remains controlled by the factory TCU).

Fitment and Application Scope

Suits:

• Subaru Liberty / Legacy Gen 4: MY04-09.
• Engines: EZ30 (3.0R) and EJ25 (GT).

Technical Specifications

Summary & Includes

The HT-151356 Kit is the premium solution for Gen 4 Subaru performance.

Includes:

• 1 x Elite 2500 ECU
• 1 x Plug ‘n’ Play Adaptor Harness
• 1 x M14 x 1.5 Air Temp Sensor
• 1 x USB Programming Cable
• 1 x Auxiliary I/O Plug & Pins