HID bulb upgrade question
 

So I've read through the other post about this topic but still have not found an adequate answer to my question. I want to get a bit more brightness out of my headlights for obvious reasons. I dont want blue headlights, just brighter. So here's my question, how do I upgrade both low and high beam without going blue? I was thinking about using the Osram 5k bulbs for my low beam, but what do I use for my high beam? It doesn't make much sense to me to have my low beam be brighter than the high beam.might as well upgrade both. I will also be adjusting the height to raise them up a tad bit. Dont want to blind other drivers though haha. Any constructive opinion s are welcome!

P.S.
If I missed this being covered elsewhere I apologize, please sticky it here if that's the case!

I'd look into either the Osram Nightbreaker Unlimited or the newer Nightbreaker Laser. Both are in the mid to upper 4K temperature spectrum and have an almost stock appearance but with much better output.

As for the high/low beam, the Z has a bi-xenon projector so the light source is from the same bulb.