Petrus

OK, I´ve been away from this forum for a while and obviously things have happened while I was "gone"...
I have the GReddy kit w E-man Blue installed and mapped on R-flash... Have run 1000km without any issues
I ´ve been reading about the E-man Ultimate and GReddy upgrading the turbokit... great!

So...
What is the benefits for me to upgrading from the "stock" GReddy kit w BLUE to the upgraded kit with Ultimate? Drivablility? RWH? Do really I get anything except $600 less in my wallet?

Thanks! (And I´m sure this has been discussed in the past, but here´s simply too many threads and subjects to catch up on...