Porsche 911 GT3 Bosch MS Racing Ecu 6.xx MS3HB0 310B621 File Info
You can view the file details below.
Hersteller
Porsche
Serie
911 GT3
Baureihe
996
Output
400PS 294.2kW
StgHersteller
Bosch
StgBaureihe
MS Racing Ecu 6.xx
Stgnr_Stg
0261000001
Stgnr_Her
MS3HB0
Software
310B621
SoftwareVersion
310B621
You can find the chip tuning file you are looking for on "Carecufile.com"