Start by using RealOEM to help find parts. You can use the last 7 of your VIN for more accurate results, or just dial down. It's not as helpful around 2021 with some cars, as it doesn't have them in the system (same for mdecoder.com)
https://www.realoem.com/bmw/enUS/select
Part 3 or 6 maybe?
https://www.realoem.com/bmw/enUS/sho...diagId=51_5760
Edit: we lovingly call it the foglight boomerang on the M40i trim....
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2021 X3 M40i Sonnenstein metallic - Full OEM Hitch, JB4, LCI lights, 50th anniv badges
Wifey - 2023 iX xDrive50, Dark Graphite Metallic
Stepson - 2014 X1 xDrive 35i - VRSF Charge Pipe
Sold - 2021 X3 M40i Phytonic Blue - LCI lights / 2016 550i M Sport - Arm DP, Arm Front-Facing Intake / 2009 328i - Stock, 195,000 running strong.