there are 2 diff kind of projectors (eyes) xenon and halogen. The projectors on p46 are made for halogen bulbs, as well as most of the projectors that you see in lower end cars (kia hyundai etc). Even my moms 06 gx470 has halogen projectors with halogen bulbs bc she didnt opt for xenons, however, had she gone with the xenons, its not a matter of simple "pop" in a xeonon ballast and bulb into her current halogen set up and it's a go. Well, it would serve its function however the cut off and light displacement would suffer greatly. Xenons need a different projector all together.
This is why yall have seen that OEM xenon is better than p46 xenon bc well, p46s werent made for xenon bulbs, they were made for halogen bulbs, hence why they are so much cheaper.
The facelift coupes all came with projectors however if you didnt have xenon, the halogen projector itself is different than the xenon projector. So to answer yalls questions, NO, projectors are different.
And for the op... you have halogen bowl reflectors. To put in those xenon projectors off of ebay is going to require you to cut off the halogen reflector, fabricate a way to mount that projector securely, and then fit a shroud around that projector lens. This is really really involved, and would take lots of patience and money bc you are more than likely to break something lol.
Your best bet is to buy p46s, or a complete set of used xenons. The latter of the 2 being my recommendation because that way all you have to do is bolt out and bolt in your new set of xenons
I hope this helps... I researched this EXTENSIVELY and Silleidiot has been my mentor:craig: