Q : Hi i have a 2016 i3 94 batera and Need to replace the infernal batery fuse box do you Sell it? How much it Costa?

Q : Hi, I have a BMW I3 2014 with the original 60ah battery pack. In order to increase range, can I just replace some of the modules and not all of them? Do I need do replace them in pairs? Can I combine the original 60ah with these 94ah? Last but not least, do you guys have any ideas of the shipment costs of this module to Brasil?