I have a HID kit for the low beams and wanted to replace them myself because one of them went out. Is there a guide which shows step by step how to do this? I tried searching a lot on google and this forum but wasn't able to find anything.

Also, would the following HID blub be fine? (I'm confused as to why ebay is such a low price compared to autozone where these sell for 100+).

http://www.ebay.com/itm/2-HID-Bulbs-replacement-9006-9007-9004-9005-H1-H3-H4-H7-10k-12k-15k-6000K-sizes-/251272465319?pt=Motors_Car_Truck_Parts_Accessories&hash=item3a81018ba7&vxp=mtr