BMW Z4 SiemensContinental MS45 07532140 456J1B File Info
You can view the file details below.
Hersteller
BMW
Serie
Z4
Baureihe
E85 2003 2009
Output
231PS 170kW
StgHersteller
SiemensContinental
StgBaureihe
MS45
Stgnr_Stg
5WK93010
Stgnr_Her
07532140
Software
456J1B
SoftwareVersion
You can find the chip tuning file you are looking for on "Carecufile.com"