Ive a similar looking box on my baby bandit and it was made by daytona in japan, it advances the timing a little and gives me 14500 rpm as apossed to 13500 OE.

Sorry to dig up an old thread but Hanna did you ever have a look inside your CDI?

Also does anyone know of a way of checking out if the map on these CDI's are different to standard (i.e software or someything?) ?

Yes mate i did open it - nothing special looking inside, and esp nowhere for a USB plug.

Im gazumped!

i think the only way to test is back-to-back dyno run.

ok cool thanks.

Anyone got any ideas as how to check the map?

The only way to check it would be to check the timing at various revs.