It's actually the ZSP bumper which came on a few models, my 00 E46 323i came with the ZSP performance package with that front bumper. The part# is 51112497156 FTR...
V/R Zachary Pullins Sr.
National Capital Chapter BMWCCA
NCC Member Recognition Chairman
NCC High Performance Driving School Back-Up Registrar
NCC Auto-X BOD Liaison
DIY Senior Committee Coordinator
2006 E90 325Xi & 2000 E46 3XXi
" Vision without resources is just hallucination"