Diode Dynamics DRL Wiring Harness For C-Light - 15+ WRX/STI

SKU: DD4055


DRL Harness for WRX C-Light

This harness was designed for use with Diode Dynamics 2015-2021 Subaru WRX/STi C-Light Switchback LED Boards ONLY. This harness allows your C-Lights to also function as the daytime running light. It will deactivate the factory daytime running light, and instead power the C-Light. Your high beam function will still work as normal.

This module has been designed with quality components, custom-tooled OEM-grade connectors, and includes embedded circuit protection, for high reliability over time. It is proudly manufactured in St. Louis, Missouri by Diode Dynamics Manufacturing.


  • Allows your Subaru WRX C-Light to also function as the DRL
  • OEM connectors for simple plug-and-play installation

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