No rewiring needed, it's pure plug and play. The instillation took me less than an hour on both. Took four revits under the hood on each side and also took out the black plastic housing of the fog light. Then I unscrewed the metal fog light housing then basically installed the bulb and plug all wirings per the instruction manual. Then tricky part was the mounting of the ballast. There are like 3 holes on the driver side that you can use to mount them. On the passenger side, it's a little difficult because the area is very tight. I ended up mounting it on the front bumper area inside the fog light housing.
I got the kit from ebay. I read a lot about HID kits and the only one I can trust of is the Philips kit. I bought a cheaper one but I returned it because I read a lot about chinese made kits and they could burn your bulb housing. I paid about $195 for the kit. They sell around $190+ to $300+. Here's the link:
http://cgi.ebay.com/ebaymotors...witem=.