Originally Posted by twinbiker11
Anyone tried putting in 55 watt ballast and seeing if they work without resistors or relays?
In my idea, it wont work, cause you still need anyway a relay harness, which means your connected to only 1 OEM plug (driver side for me..), so you need 1 resistor to avoid bulb out error on passenger side...
Plus, DRL on those focus are giving only 9 volt, which isn't enough to run those ballast... so you can't imagine running them without that relay harness.
There is more fact that makes me think it won't work with DRL, but that much summarize it