Hello Alex ,
thank you for that clarification. Sometimes, in the net, are useful tips but also completely false, like the new software to have 200 HP.
My doubts were generated by the fact that my mechanical has always argued that there is no software upgrade of the ECU.
To solve the problem of turbo-lag I have already purchased a performance kit kW-system. Of course, to equal engine, a avensis works better thanks to the reduced weight compared to Is220d.
Sergio :)