Well, I have the real HIDs from the factory. The only problem was that the parking lights were amber, and always on when the HIDs were on. It really dirtied up the look. So I replaced the amber parking lights with hyperwhite LEDs from a my350z.com member, and replaced the amber turn signals with high-quality silver coated bulbs, but they still blink amber.
Look at the compare picture- that is with just the parking lights on. Should give you an idea what I'm talking about.