HKS ECU Free Harness

2013–2020 Subaru BRZ / 2013–2016 Scion FR-S / 2017–2020 Toyota 86

45999-AF004

Overview:

The HKS ECU Free Harness is a specialized wiring solution designed for Subaru BRZ, Scion FR-S, and Toyota 86 models spanning the years 2013 through 2020. This harness enables you to install the HKS EVC-GT Valve Controller without the need to alter or modify your vehicle’s factory wiring harness. It is ideal for enthusiasts who want to integrate advanced boost control technology while maintaining the integrity and reliability of their vehicle’s original electrical system.

Whether you are a daily driver looking to upgrade your turbo management or a performance enthusiast seeking precise boost control, this harness provides a clean and professional installation path. It ensures seamless communication between the ECU and the EVC-GT Valve Controller, supporting enhanced tuning capabilities without compromising factory wiring.

Key Features:

The HKS ECU Free Harness offers a range of benefits that simplify installation and improve system integration for your BRZ, FR-S, or 86:

• Designed specifically for 2013–2020 Subaru BRZ, 2013–2016 Scion FR-S, and 2017–2020 Toyota 86 models for perfect fitment.
• Allows installation of the HKS EVC-GT Valve Controller without cutting, splicing, or modifying factory wiring harnesses.
• Maintains factory electrical system integrity, reducing the risk of wiring damage or faults.
• Facilitates precise boost control by providing a dedicated, plug-and-play connection to the ECU.
• Constructed with high-quality wiring and connectors to ensure reliable signal transmission and durability.
• Supports enthusiasts who want to upgrade their vehicle’s boost management system with minimal hassle.
• Helps preserve vehicle resale value by avoiding permanent wiring modifications.

Construction & Design:

The harness is engineered with OEM-grade connectors and wiring to ensure compatibility and durability under the demanding conditions of automotive environments. Its plug-and-play design matches factory connector types, allowing for a straightforward installation process that integrates seamlessly with the vehicle’s existing ECU wiring.

By avoiding any need for cutting or splicing, the harness maintains the original wiring’s integrity and reduces installation time. This design approach also minimizes the potential for electrical issues, ensuring consistent performance and reliability when paired with the HKS EVC-GT Valve Controller.

Installation & Fitment:

The HKS ECU Free Harness is a direct-fit solution tailored to the specified Subaru BRZ, Scion FR-S, and Toyota 86 model years. Installation is straightforward and does not require any cutting, drilling, or special tuning adjustments. Simply connect the harness between the vehicle’s ECU and the EVC-GT Valve Controller to enable full functionality.

• No cutting, drilling, or modification of factory wiring is required.
• Uses factory-style connectors for a secure and reliable connection.
• Compatible with stock ECU and factory wiring harnesses for the listed vehicles.

What's Included:

• HKS ECU Free Harness designed for BRZ, FR-S, and 86 models
• OEM-style connectors for plug-and-play installation
• Installation instructions for proper integration with the EVC-GT Valve Controller

Ideal For:

This harness is perfect for Subaru BRZ, Scion FR-S, and Toyota 86 owners who want to upgrade their boost control system using the HKS EVC-GT Valve Controller without compromising their vehicle’s factory wiring. It suits daily drivers, track enthusiasts, and tuners seeking a clean, reliable, and reversible installation solution.