How to replace floodlights???
 

I recently had my 2003 Lexus GS300 fixed after an accident and when I got home I noticed it had yellow floodlights. Weeeeell, I never noticed that before but since I can't prove it after speaking with them I let it alone. Maybe it did have yellow floodlights; I just never noticed. Any way, I want to change them out to regular lights that match the headlights.

1. How hard is it to change out the floodlights on a 2003 Lexus GS300?

2. How do you do it?

3. What tools, etc.. would I need?