just actually put mine in last week, love them so far. Great light out put and they look awesome on the car. Look around and you can find them for killer prices.
I would say the only con is that they are not exactly plug and play, little bit of slicing needed if you want to use the stock fog light switch.
ya ebay use to i havent looked on ebay for a while so i dont no if they have anything right now but you can checkand as for a web site i dont think there is one. well i never found one lol
they are not hard to install, just jack up the car, take off the stock ones, splice the wires and mount them. you are going to need about 4 washers per light in order to get them to aim higher too, and thats about it.
If u mean will it just plug into the stock harness like an HID setup, no, if you mean can you use the stock wiring, yes. Like i said, you basically are going to cut the end of the stock wires, then you cut the wires at the end of each fog light and splice them together. I can get u pics but your gonna have to wait until the weekend weather permitting (i have no garage (sad2))
depends, the stock fogs are 55w, some catz are 85w and some are 55w, the ones i have are 55w and do the job just fine. but either way the stock wires can be used, i am pretty sure there are a few people on here with 85w ones hooked up to the stock wires.