Q: I need help replacing stock headlights with Halo LED Projector HID headlights.
I have a 2009 ford Mustang and I want to replace the stock headlights with Halo LED Projector HID headlights. The HID headlights have 2 HID bulbs(upper and lower) for the left and right housing making a total of 4 bulbs in all and I have the relay harness and I have to ballast. But since I have 2 more bulbs left will I need to get 2 more ballasts.
My car has 121026 miles.
My car has an automatic transmission.
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