Hey, did you ever upgrade your HID's?
I have a 2016 as well .... blacked out headlamp covers, making brightness even worse with stock HID.
I was looking at the OSRAM Xenarc 66340 Night Breaker Laser bulbs, now mind you, they are only 4200k as well, but they by far were the highest / brightest of the bunch tested at 25 ft for lumens ....I'm looking for more illumination so I can see down the road better, not necessarily blue light color....
https://www.headlightrevolution.com/d3s-osram-xenarc-66340-nightbreaker-laser-B-66340XNL_2?quantity=1
If you upgraded, let me know what you did and how you like them ...
Thanks!