Removable inserts in the yoshi RS3 duals

[moshy_7]

Hi all,

i would like some info please regarding what they call removable noise inserts..

Does that mean there are several that could be taken out individually so as to improve noise/performance or only one insert as an option for say track only?
I would like to know if there are several options on the removal of inserts and how difficult would it be to adjust/do ---- ?

As you can tell I am not versed in the sciences of mechanicism'z.

Any help would be greatly appreciated..

A big thank-you in advance