Can I purchase a 10000K HID Bulb and replace it with the stock bulb that is in my car now, with the stock ballast and everything?

 

yes, you can as long as its the same type of bulb in the car, you can put any of the D2R, D2S, or D2C without having to switch the ballasts or anything.

 

next question, why a 10k bulb?

 

because I want it to be blueish... or is 10000K to blue?

 

I guess it all depends on where you live and how well the lighting is when you drive at night. Anything above 6000K will decrease your light output and is usually more for "looks" ...even though 10000K will look like the neighbors 16 yr old kid who got an EG hatchback and slapped an ebay HID kit on it...

 

what are the stock bulbs for a 2002 CL? I heard it was around 4300K? True?

 

Yes, 4300k. IMO up to a 6000k is ok, but light output will not be as good as 4300k. 6000k will have a blue tint, not nearly as severe as 10000k, plus oncoming traffic wont hate you as much.

 

if you want light out put go with 3000k

 

3000k would be too yellow for me. stock (4300k) or anything till 6000k is only what i would run.

 

the "brightest" output you can acheive is by using a 5000K bulb from a quality source.

 

haha I was using 3000K bulbs in my lowbeams for the winter and it helped alot but after seeing yellow for 4 months it got annoying