HKS ECU Free Harness

2013–2021 Subaru BRZ / 2013–2016 Scion FRS / 2017–2021 Toyota 86 2.0L

Part #: 45999-AF004

Overview

The HKS ECU Free Harness is a specialized wiring solution designed for enthusiasts who want to enhance their Subaru BRZ, Scion FRS, or Toyota 86 without the need for complex modifications. This harness provides a seamless way to connect aftermarket devices, such as the HKS EVC-GT Valve Controller, directly to your vehicle's ECU, ensuring reliable communication and optimal performance. Whether you're aiming to improve your car's tuning capabilities or add auxiliary control systems, this harness simplifies the installation process and maintains the integrity of your factory wiring.

Designed with the performance enthusiast in mind, the HKS ECU Free Harness allows you to upgrade your vehicle's electronic control systems with minimal hassle. It is ideal for those who want to support modifications that enhance throttle response, boost control, or other engine management functions, all while preserving the factory wiring harness. This product is perfect for DIY tuners, professional installers, or anyone looking to streamline their upgrade process without risking damage to existing wiring or sensors.

Key Features

The HKS ECU Free Harness is engineered with precision and quality to ensure a reliable and straightforward installation experience. Its key features include:

• Custom-designed wiring harness compatible with Subaru BRZ (2013-2021), Scion FRS (2013-2016), and Toyota 86 (2017-2021) models equipped with 2.0L engines.
• Allows connection of the HKS EVC-GT Valve Controller without modifying existing wiring, preserving factory integrity.
• High-quality, durable wiring with automotive-grade connectors to withstand under-hood conditions and vibrations.
• Plug-and-play design that simplifies installation, reducing time and effort required for setup.
• Maintains factory ECU signals, ensuring compatibility with stock and aftermarket tuning components.
• Supports clean, professional-looking installations for both street and track use.
• Constructed with attention to detail to ensure long-term reliability and performance.

Construction & Design

The HKS ECU Free Harness features a robust construction with high-quality, automotive-grade wiring and connectors. Its design emphasizes durability and ease of use, with a plug-and-play architecture that eliminates the need for cutting or splicing factory wiring. The harness is tailored specifically for the Subaru BRZ, Scion FRS, and Toyota 86, ensuring a perfect fit and seamless integration with the vehicle's existing electrical system. Its compact and flexible design allows for neat routing within the engine bay, maintaining a clean engine compartment appearance.

Installation & Fitment

The HKS ECU Free Harness is designed for a straightforward, bolt-on installation. It connects directly to the factory wiring harness and the aftermarket device without requiring any cutting, splicing, or soldering. The harness uses OEM-style connectors to ensure a secure and reliable connection. No additional modifications or tuning are necessary for basic installation, making it suitable for both professional installers and DIY enthusiasts. The harness is compatible with the specified model years and engine configurations, ensuring a perfect fit for your vehicle.

• Plug-and-play installation with no cutting or splicing required
• Compatible with Subaru BRZ (2013-2021), Scion FRS (2013-2016), and Toyota 86 (2017-2021) models
• Supports installation of the HKS EVC-GT Valve Controller and similar aftermarket electronic devices

What's Included

• HKS ECU Free Harness
• All necessary connectors and wiring components for a complete installation

Ideal For

• Performance enthusiasts looking to upgrade their vehicle's electronic control systems
• DIY tuners and professional installers seeking a reliable wiring solution
• Owners of Subaru BRZ, Scion FRS, or Toyota 86 models who want to add or upgrade boost control devices