I was looking at SW Autoworks and came across these.
http://store.yahoo.com/southwestauto...rwhitbul4.html

If anyone has these, are they pure white or do they have blue/yellow tint to them?
Do these bulbs require upgraded harnesses?
How difficult is it to upgrade the harnesses?

i had them without upgraded harness and they melted my stock ones. so yes, you need to upgrade. they also blew out, and they were pretty blue.
i upgraded the harnesses two weeks ago and it was pretty easy, just wire splicing.

I went through 2 pairs of them and both had a dud in each pack. color is a nice white with a hint of blue. all I can say is that my xtravisions overpower them at night. no more hid imitations for me

So I'd be better off just buying some Xtravisions instead. Those don't need upgraded harnesses do they?

no you dont need the harness with those. you will get the same stock yellowish color with these bulbs but get more light out of them compared to the nokyas. to me I rather have a useful light and have it yellow than a fake hid color light that you cant see **** at night