ORACLE ColorSHIFT Halo kit for 2016–2018 GMC Sierra is CAD-designed to install behind the stock diffuser and adds color-changing halos without affecting factory DRL or turn signal function. The kit includes a ColorSHIFT controller option and all components needed to add ColorSHIFT halos to the headlights. Multiple controller options are available and the upgrade preserves factory DRL operation while providing color and pattern control for visual customization.
Oracle 16-18 GMC Sierra Headlight DRL Upgrade Kit - ColorSHIFT