it would be just plug and play. I upgraded my stock HID bulbs to 6000k from 4300k. Made quite a bit of difference. I would suggest matching the lowbeams with some HID fogs.
I recommend DDM tuning.
http://ddmtuning.com/hidkihidbuhi.html Scroll down to HID bulbs and make sure that you choose D2R as that is what the stock HID bulb is. Choose the bulb "color" and buy them! If you choose to buy the fogs then the size would be H11 and i suggest the slim balast kit.
Oh and i see your out in Fontana. Let me know if you guys need help with installing them, im down to give you guys a hand, im up in the high desert (victorville). Oh and if your friend wants to see them before he buys let me know and ill meet up and show you what they look like in person.