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ORACLE ColorSHIFT Halo kit for 2016–2018 GMC Sierra with Simple Controller installs behind the stock diffuser to upgrade factory DRLs to color-changing halos while preserving DRL and turn signal function. The kit includes all necessary components and a Simple Controller for basic color and pattern control. CAD-designed PCB and pre-installed 3M adhesive backing simplify mounting. Professional installation is recommended for proper sealing and fitment.
Oracle 16-18 GMC Sierra Headlight DRL Upgrade Kit - ColorSHIFT w/ Simple Controller
