I tried with no results to locate one for my 633CSi also, I ended up taking the plastic front bumper cover from another vehicle and made it fit mine. Turned out alright, still have some bodyywork to do on it but I am very pleased. Dont have pictures as of yet because I am still in the process of painting graphics and fabricating the rear cover and wing. Good luck but if you go the route I did just look at other bumper covers on other cars and take pics to paste over a pic of yours to see if you like it. BTW mine came from a 88 Hyundai Excel hatchback.
<span style='font-family:Impact'><span style='color
urple'>Wm. D. Cunningham</span></span>
My 1984 BMW 633 CSi Pictures: http://www.roadfly.com/bmw/gallery/p...37076,1;-24,1;