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) Cooling Capacity: -8°F to +50°F

Cooling Capacity: -8°F to +50°F

Factor 55 parts are conducted at a test and measurement facility that is also certified for National Defense Department rigging and hoist testing

1) White LED --> up to 15

Choose PickUp

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

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) Cooling Capacity: -8°F to +50°FConnect 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