Changing headlights

[jackhinkley]

HI there, I'm looking at installing some of the bi-Xenons from the post facelift gen 4 into a pre facelift model (spec b's), and was just wondering what else needs to be changed before I pull the trigger and find myself way deeper in the rabbit hole than I expected. If anyone has any experience in it could you please let me know?

[Tonic]

Dunno but as a gen 4 owner who goes through bulbs regularly I will watch for learned replies...