Talk:Modernization/@comment-31353477-20170619132635/@comment-31832128-20170619144130

As written on the Remodel page,

For the stats that can be increased through modernization,    Firepower,    Torpedo,    Anti-Air and    Armor there is currently no known formula, and is considered to be random.

So above 4 stats are  reset once at remodel and rise randomly.