The flasher unit exists on the newer Monsters (2002 & up), but it's just an integral component of the ECU so it's not separate like the older bikes were. Are you experiencing problems with the flasher unit on your bike? PM me or maybe start another thread describing the issues.
These are nearly identical to the Kisan signalminders and can be made to work on bikes (2002+) where the signals are handled by the ECU unit.
The problem is that you basically have bypass the ECU and build a fresh circuit to use this.