I recently purchased HID Xenon bulbs to convert the color and look of the headlight units. But now im curious if i need to by a ballaster or not? I have seen several Lexus Ballasters for sale which would mean the Lexus already has a stock one in the car. Has anyone installed HID's and if so could could you please let me know if i need to install a new Ballaster or not, i purchased the bulbs a few days ago and they should be in soon.
Thanks