9004 HB1 Heavy Duty Headlight Wiring Harness with Relays Upgrade Autobahn Autoworx high surface area)

high surface area)

Yes—these mount directly at the OEM holes

Engineered to outperform standard automotive products

this compact monitor connects to your battery and syncs with your smartphone to provide real-time diagnostics

9004 HB1 Heavy Duty Headlight Wiring Harness with Relays Upgrade Autobahn Autoworx high surface area)Connect 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