I just installed a CORSA QUICK AND QUIET diverters,with out power,they are in the open postion.
is there a way so they are in the closed position,without power?

Ok my boat has this from factory and with out power it is quite. i have to give them power to make the boat loud. is that what you mean? if so i want it to be the other way too.

I believe Corsa uses two different styles of actuators depending on the system being used. When I looked into purchasing an RPM activated switch for my quick and quiet, they needed to know how it worked because of two styles of switches. I would contact Corsa directly with questions, they have been more than helpful to me.