How to install bi-xenon hid h13 with harness
Usually newer cars will need a relay harness going from the battery to power the HID bulbs and ballasts. My 2009 mustang uses H13 bulbs but i didnt get bi-xenon. i have a 5000k headlight and a halogen high beam. H13 will go in just like your stock bulbs. Cable will run from HID bulbs to a ballast on each side, which has a cable going from the ballasts to the relay harness.
If the original lights were not factory HID lights don't put HID bulbs in. The reflectors for a halogen bulb are quite different than for a HID bulb and can dazzle oncoming traffic. Furthermore any HID lighting unit should be fitted with an automatic light leveling system to prevent blinding other motorists. Yes, you may think it looks cool, but to other people you'll be a pain in the backside...
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