Speed Density not active

In the map I found in the ECU the Speed Density was not active and all works on MAF mode

It works quite well especially after I tune the MAF properly, but should I activate SD or not .....which in your opinion are advantages and disadvantages?

thanks

High RPM Disable is still set to 4000rpm. That means at 4000rpm and below dynamic airflow calcs reference both MAF and VVE. You should tune VVE also.