White turn signals…

Meal! I’m here for the first time today- my Z4 3.0 is picked up on Friday, it was time for me to turn in here!!! The car is stelling grey met. has the 108 rims on it and already white turn signals on the back and side! The question came to me already but nevertheless: Do I really have to replace the complete headlights for the front??? Is it really expensive at Xenon or? Thanks for your answer… Many greetings, The New…