I found it easy fit the covers just removing half of the screws and bending the plyboard slightly, but of course removing all of them would be safer. A matter of how handy and careful you are. As the steel covers as Mike mentions thicker than the original plastic ones, it can be difficult re-entering the four screws that surround the cover, they simply do not appear long enough to penetrate first the dished washer, then the leather and the plyboard that has moved slightly outwards, and finally the screw hole. I solved this by first entering the screws without the dished washer. Then they enter the hole easy enough, and by tightening them gently the board is pressed tight onto the cover. Then remove just one screw, the board will stay in place. Put the dished washer back on the screw and enter it again, now it will grip threads with no problem. And so forth with the remaining screws. You have something to look forward to, the steel covers really gives the cockpit appearance a lift.