Yes, I already purchased an Ebay kit for my old car. Cost about £48 delivered to the UK. I got it from a US Ebay seller called "alpha-bid". It was easy to fit (once I had removed the headlight assemblies) and was probably the best thing about my old car. I would have removed it, except it was H1 bulbs, while the Xfire is H7. Also note, you only need to do the dipped beams. No point doing mainbeam.
I just ordered another kit (H7) and I can recommend 8000k colour temperature.

Dave