HID Style Lighting. Sylvania's Silverstar Ultra bulbs produce a brilliant white light that carries 40% farther downroad and improves sideroad vision by 50%. Their 4100K light is the same color as many HID kits for the look you want without the high price tag.
9004 Bulbs. The 9004 Series Bulbs, also known as HB1 Series Bulbs, are dual filament bulbs featuring both high and low beam filaments in one halogen gas filled glass tube.
Application. 9004 Series Bulbs were featured in many cars including factory Mustang Headlights from 1987-1993. 9004 Series Bulbs are also found in many of our Fox Body headlight upgrade kits. These bulbs are sold as a set of two.
Technical Notes. If you are buying new Mustang headlights, the bulbs in your new lights may be different from your OEM bulbs. Please purchase the bulbs specified for your new headlights. Need help? Call us for assistance.