This new ORACLE ColorSHIFT(tm) DRL Kit is C.A.D designed to specifically replace the stock DRL circuit boards of the 2014-2015 GMC Sierra Headlight. This kit allows you to change the color of the DRL's to whichever custom color you would like. This kit includes the ORACLE ColorSHIFT(tm) controller and does not affect the function of the factory headlight components. Note This kit will only fit GMC Sierra Models with pre-existing daytime running lights. Everything you need to add ORACLE ColorSHIFT(tm) DRLs to your Headlights!