I just installed Supper trapp Kerker with Mikuni cores I thought they would be louder. I have the fish tails on them. My question is will they get louder with more use? Thanks for your response.

 

I have the same mufflers and cores on my FLTR. Different end caps.

If the sound did become louder it was so gradual that the difference is not discernible.

All I can say is that after three years of riding with the setup I would not want them any louder for long distance runs.