Can someone please post a pic of exactly where the ballast is on the 2013 GS? I want to change out my bulbs to 6000K but haven't located the ballast. Its not in the same spot as it was on my 08 GS. Any pics would be helpful...Thanks!

 

It is fairly easy. Mrpartsman gave me instructions.

"on the right side remove the top cover,then u will see the ballast , just twist counter clock wise it will pop open, the unplug the connector,then there is spring that holds the bulb in,just unlock the spring and carefully take the bulb out, it is a tight spot, make sure u do not touch the bulb,and watch how u take the bulb out,the pin location, so u can put it the same way and put the clip on , make sure u put the clip on correctly or else ur bulb will not aim straight.and on the left side turn ur wheel all the way to right and u will see a small pocket with 2 screws, take the screws out and the same way, ballast ,plug then clips, the left side is easier than the right side"

It is rather tricky on the drivers side, since there is not a lot of room even through the wheel well. I had a local shop do it for me. But you can also take it to the dealer. My dealer would only charge $40 for the swap out.

Good luck