Are you looking to improve lighting performance in all weather conditions? Are you looking to improve aesthetics of the front of your MKIV Golf? Then look no further than this lighting upgrade from ECS Tuning for your MKIV Golf or GTI. Fog lights are very different from all other lights in the way they shed their light on the road. A fog light has a special lens which diffuses the light and instead of sending a direct beam forward it scatters light broadly to both the front and slightly off-set to either side of the vehicle. They are intended for use at low speed to increase the illumination directed towards the road surface and verges in conditions of poor visibility due to rain, fog, dust or snow. This kit is intended for individuals who have existing wiring or intended to create their own harness. *Replacement bulb is a H3, and to remove just pop off the rubber cover and the bulb is secured by a philips head screw also holding in the groung wire **This non-DOT approved product is for Off-road/Track use only. Not approved for legal street use**