I am new to this forum and just purchased an 01' 330i that came with a xenon out and you guessed it a fried igniter, bulb and bulb mount melted together. In my research I have come across different part numbers for both igniters and ballasts pre 9/01 and aft. The early parts are bosch and post 9/01 are split between two different manufacturers, (not Bosch). The price is way different with the early model I have being 350.00 and the latter igniter being 100.00. Can these possibly be any different in spec??