Thanks for the quick replies. It's unfortunate because at first it gives a blue that in my opinion is comparable to high-end vehicles such as BMW and Mercedes; but after they're warm they're really not that blue at all. Do you know what the Kelvin rating is for the stock GT bulbs? It must be like a 4000k or something like that.
Just to clarify, when you say change the bulb, do you mean just the bulb? Or do I have to put in a whole new aftermarket HID kit? I am not so concerned with vision, but I am concerned with the quality of the bulb. I know with my previous aftermarket kit, the lights were very bright for oncoming traffic, so I really don't want to go down that path again. If there is a way to keep the same level of quality I have now but add some more blue, I'd definitely be interested in learning more.
To summarize: I want more blue, but don't want it to look cheap. I am not so concerned with my own visibility, but I am concerned with blinding oncoming traffic. I don't want to install a whole new kit (just bulb if possible).