its doesn't work that way anymore, they all use the same ECU and software provided by Dorna and magneti marelli.
no one can add too or update the Software. if a team finds a problem or wants an extra feature, they have to submit it to magneti marelli for maybe a future update, but when its added all the teams get it and not just the team that asked for it.
its a lot fairer this way and stops the works teams having there own special software like last year.
2016 MotoGP electronics - agreed principles:
* A single official MotoGP ECU software for engine and chassis control will be mandatory on all machines.
* The official MotoGP ECU hardware will be mandatory on all machines.
* All sensors and acquisition devices connected to the ECU must be homologated (ie. supplier, price and availability is the same for all MotoGP teams), with the following exceptions:
I. Non-homologated sensors are permitted for testing and for free practice sessions at events. Only homologated sensors may be used for Qualifying and Race.