The kit I purchased was from http://www.hidynamic.com
. I've had alot of experience with HID kits and these are definately the BEST i've had. I bought the motorcycle kit which comes with only 1 set for $139. The system I got was a "special request". I wanted a ballast with integrated igniter. Also, the bulb has both a HID and Halogen. The halogen is only there as a backup for me OR when a cop pulls me over, I'll just switch it over and say "what bright headlights?" [laugh]
Also, I've read many many threads on this board about incompatibility with stock. With the system I bought, its EASY! basically all plug and play to the stock system. NO HACKING UP the light bucket. No length problems with the bulb. Your biggest concern is where to mount the Ballast.