Dear All,
I am wanting to put brighter lights in my 2004 Jaguar XJR (R) 90,000 miles, (excellent condition) and am considering these:

"JDM 6000K D2S Xenon Hi/Low Beam OEM Stock HID Diamond White Light Bulbs"

I live in the countryside of Conn. with plenty of up-and-down winding roads but also plenty of highways, small and large.
I currently have 4000K white main beams in them and although they're good they are not what I need for night-driving around here. Will the above pair of bulbs fit/work/cause problems for me? Could somebody please advise me as to whether this is a good idea or just a stupid whim?
Thanks in advance,
Paddy

P.S. I am a complete mechanical nudnik but this is my fourteenth Jag in a row!