SMY Rear Brake Light PNP Harness 4-Wire 2011-2014 WRX Sedan / STI Sedan | Plug-and-Play Installation | Electrical Harness

Overview

The SMY Rear Brake Light PNP Harness is designed specifically for 2011-2014 Subaru WRX Sedan and WRX STI Sedan models equipped with 3-wire rear brake light kits. This harness streamlines the installation process by eliminating the need to splice into your vehicle’s OEM wiring harness. It acts as a direct plug-and-play interface between the factory tail light connector and your aftermarket F1 rear brake light kit, ensuring a clean and reliable electrical connection.

Engineered with precision and Subaru-specific fitment in mind, this harness maintains the integrity of your vehicle’s lighting system without altering the brake light’s output or function. SMY focuses on practical solutions that respect the OEM wiring architecture, providing enthusiasts with a hassle-free upgrade path that preserves factory reliability and safety standards.

For Subaru owners upgrading their rear brake lights, this harness offers a significant time-saving advantage during installation while ensuring consistent electrical performance. Its plug-and-play design reduces the risk of wiring errors and potential electrical issues, making it an essential accessory for anyone installing SMY’s F1 rear brake light kits on compatible WRX and STI sedans.

Features & Specifications

This SMY Rear Brake Light PNP Harness is engineered for 2011-2014 Subaru WRX Sedan and WRX STI Sedan models and features a 4-wire plug-and-play design. Constructed from high-quality wiring and connectors, it delivers a reliable and clean electrical connection for Subaru enthusiasts seeking a simplified rear brake light installation.

Brand: SMY
Product: Rear Brake Light PNP Harness 4-Wire
Part Number: RBL-4WIRE-GR
Fitment: 2011-2014 Subaru WRX Sedan, 2011-2014 Subaru WRX STI Sedan
Material: High-quality automotive wiring and connectors
Finish: OEM-style wiring harness finish
Construction: Plug-and-play with female plug connectors
Origin: Not specified
Wiring Configuration: 4-wire (Black - Ground, Red - Parking/Running Light, Green - Brake Light, White - Reverse)

Key Benefits

Installation Efficiency: Speeds up rear brake light kit installation by eliminating splicing into OEM wiring
Plug-and-Play Fitment: Directly connects between factory tail light and OEM harness for a clean, reliable connection
Preserves OEM Wiring Integrity: Maintains factory wiring without altering brake light output or function
Compatibility: Designed specifically for 2011-2014 WRX and WRX STI sedans with 3-wire rear brake light kits
Reduced Electrical Risk: Minimizes potential wiring errors and ensures consistent lighting performance
Subaru-Specific Design: Tailored to Subaru sedan platforms for perfect fit and function

What's Included

1× SMY Rear Brake Light PNP Harness 4-Wire
3× Female Plug Connectors
PNP Wiring Guide

Installation & Compatibility

The SMY Rear Brake Light PNP Harness is designed for straightforward plug-and-play installation, making it a DIY-friendly upgrade for Subaru WRX and STI sedan owners. No special tools are required beyond basic hand tools to unplug the factory tail light connector and insert the harness inline. This harness does not regulate or modify light output, so no additional tuning or electrical modifications are necessary.

Professional Installation: Recommended for those unfamiliar with automotive wiring but generally DIY-friendly
Modifications Required: None; direct plug-and-play harness
Verify Compatibility: Confirm fitment for 2011-2014 Subaru WRX Sedan and WRX STI Sedan with 3-wire rear brake light kits only

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2011-2014 STI Interior

SMY Rear Brake Light PNP Harness 4-Wire 2011-2014 WRX Sedan / STI Sedan