14-15 Sierra Non SLT/Denali to '16-'18 GMC Sierra 1/2 Ton HID Headlight Conversion Harness 2020 Silverado Fog light harness Front side markers are powered

Front side markers are powered off of the low beam headlight bulbs

This works on all 16-18 Camaros only

we have observed a substantial increase in fuel efficiency with the Roto-fab CAI – an increase of up to 2 MPG

Will not work on 2014 (2500/3500 Models)

13-15 All other Models

14-15 Sierra Non SLT/Denali to '16-'18 GMC Sierra 1/2 Ton HID Headlight Conversion Harness 2020 Silverado Fog light harness Front side markers are poweredThis is only for OEM headlights not aftermarket headlights This harness is for those with 2014 2015 Non SLT Non Denali model GMC Sierra's that are looking to install the new 2016 2018 "C" shaped HID headlights into their truck. 2016 2018 1 2 ton truck's use this new style headlight which will mount into your 2014 2015 model. Please note there are 2 different 2016 2018 1 2 ton headlights out there. Both use the "C" shaped led, but 1 uses a separate