hmm, not sure about the normal bosch plugs. AS for the fuel filter, dont even let them do that, they will overcharge you, and its simple. The filter is held on by two plastic snaps. All you have to do is pull the fuse for the fuel pump, start the car, let it die, then crank it a few times. Then you go under the car, pull the snaps, take old filter out, put new one in (it tells you which way it goes on the filter), and replace with new snap clips.
