C5 Corvette 1997-2004 Headlight Relay Kit - Quad Beam Hi 4

When you put a higher wattage bulb into the socket, it causes more damage to your wiring harness. These relays will make your head lamps bright white again by turning on the low beams in conjunction with the high beams when your high beams are switched on. This is known as a Quad-Beam Head Light setup.