And how hard is it going to be to switch from 04 OEM non-HID headlights to 06+ OEM Bi-Xenon on my 04 Z?

 

As easy as using the search button...

 

its a exact swap over..... normally people would bash people but I never bash a fellow Brother RLTW what Bat you from???

 

Not sure how you can be on this forum for nearly 3 years and not know how to use the search function? This topic has been discussed tons of times....

Here is some reading for you OP after just searching for "HID Headlights"

https://my350z.com/forum/body-interi...eadlights.html

https://my350z.com/forum/exterior-an...o-non-hid.html

https://my350z.com/forum/exterior-an...eadlights.html