Exactly, most all HID kits are reversable and require no drilling aside from the sealed dust caps. Unless you are planning to hard mount the ballast somewhere and drill the car to mount brackets or semething. Generally, kits are plug and play and it is finding room to mount the hardware (Ballast and seperate ignitor if it uses that type) that is the hard part. In my case, I learned from a friend how to run all the wires through the OEM headlight wiring harness. I had to buy the appropriate Honda terminators, open up the connectors, terminate my wires using a special Honda Crimper tool, and put eveything back. In may case, all the HID wiring runs though the OEM wiring as it if were stock. However, because of that, it is a little more involving to quicky return to stock as I would have to undo it all. I do have a special custom made 9006 wiring harness that I use if I ever need halogens quickly for some reason though.
