So I contacted pietcard to clarify some cdi box stuff. Apparently the 2013 does retard and this is what he said:
Both CDI retard the timing,
The 2013 is until 10.000 RPM
The 2041 is until 16.000 RPM
But this CDI need the correct coil to work good.
PIETCARD ELECTRÓNICA SRL
Im prying for a little more clarification.