9004 HB1 to 9007 HB5 Heavy Duty Headlight Wiring Harness with Relays Upgrade Select Harness & Power Wire Gauge:12 Gauge Wiring & 12 Gauge Fuse Holder (+$30) Choose PickUp

Choose PickUp

1) White LED --> up to 15

Tires perform best when they are set at a pressure that is appropriate for the terrain

Adjustable | One Size Fits Most

9004 HB1 to 9007 HB5 Heavy Duty Headlight Wiring Harness with Relays Upgrade Select Harness & Power Wire Gauge:12 Gauge Wiring & 12 Gauge Fuse Holder (+$30) Choose PickUpConnect your vehicles headlight bulbs to FULL BATTERY VOLTAGE for MAXIMUM BRIGHTNESS! At Aspire Auto Accessories, we manufacture and carry our own Heavy Duty Wiring Harnesses with Relays that fit a wide selection of bulbs commonly found in most vehicles. This relay and wiring harness upgrade is one of the most simple and effective ways to improve dim headlights and overall headlight performance by increasing both your low beam and high beam