bull****.
My 10k fogs were blue as ****.
It was like driving under the ocean.
Higher the Kelvan temps, the bluer the light...and the crappier the light output...wattage isn't going to help you there. 35W 4300/5000K's > 55W 10000k.
Blinding other drivers isn't the goal...putting HID's in the factory housing just makes super bright headlights but not a good output pattern. When EBay projectors are modded correctly OR when you retrofit a stock housing...then you're golden.
If you don't want to go with either of those choices...then get some 4300K 35W HID Head/Fogs. Trust me...brighter white is what you want, not uber cool Paul Walker blue.