yes get one for 4 stock headlights but 2 one on each side looks clean, wires are short for less current drop except for the yellow ones that goes to battery. they are large enought to cover the 4 foot run, if battery is in trunk i would use a ten gauge wire instead of 12 that is supplied , mine are in the black wire loom they supply, and if you ever want bigger lights later you can just pop in the bulbs ! the harness that competition sells uses 2 30 amp relays, and a lot of extra wire you dont need just to make this a plug and play instllation extra plugs means more chances of corroded terminals. this satup uses 2 40 amp relays and less unsessary wire, looks so much cleaner, and able to handle bigger watt bulbs, besides more voltage power, less current loss means longer bulb life.