I shaved a civic hatchback for a friend back in highschool, and as long as you have the right tools, alot of time, patience, and a good bit of money, you can do it on your own. Just make sure you take it really slow and spend some time learning to shape metal and weld before you start doing any surgery on your car.
hey bonacci, when you lifted the door bumpers, was there an indentation underneath them, or are there just snap holes? I want to shave mine, but I haven't taken the time to take them off my car to find out.
-jg