ok here is to clarify things. IS200 headlights (orange indicator lense) do not fit on the IS300 and vise versa. the HID IS300 headlights ( clear indicator lense) were introduced on the IS200 on the MY04.5 model which included the upgrade from the 5 spoke 17" wheels to the 11 spoke wheels for the range topping model. All MY04.5 models onwards also came with different windscreen washers, dark chrome headlights, fogs, tail lights. So yeh the IS300 lights need different fender headlight mounts. I have IS300 lights on my MY02 2003 IS200 because I custom fitted them.