This harness is built with slightly heavier gauged wire than OEM and is housed in 3M heat shrink tubing.
These harnesses are built by me and are built much better then OEM. OEM harnesses use electrical tape to insulate splices and to wrap the entire harness.
The inner splices are crimped much better then OEM and are then sealed with heat shrink. 
 
OEM connections for plug and play operation
18 Gauge OFC wire throughout
fully housed in heat shrink tubing
headlights
taillight
stock kill/light switch