So i got a set of 06-08 headlights one of the lights came with no ballest or igniter or bulb. I have 03 factory Xeon's. Can I use the ballast from the 03 then just get a d2c igniter for the 03 ballast and I should be good and then get the bulbs.

 

I think ballast is the same, so yes.

 

i have a 03 track edition. but im planning to get 06+ lights brand new. will it be a straight fit? i bought HID for my 03 already.

im in Australia but the lights im buying is 06+ US model