Drill the bumper shocks. You can do this either on the car, or off the car.
Either way, wear eye protection!! Contents under pressure!!
Then push your bumper in. You might need to put a screw in the shock in order to keep it compressed, you might not. Good luck!
'86 325es (TURTL3): PJ peetsa hawler
'87 535is (BADWATER): almost done... really.
'86 325e (GRN HLL): DD/show/rocket
'04 x3 3.0i: Wife's Bimmer (manual, woot!) My BMW Blog