Here is a twist. I have an 11 flhtk with the 103. I have de cated the header,SE stage 1 A/C, Power Vision tuner and am running stock mufflers.
How do I make this bike quieter without the loss of power.I know cadilac mufflers would look stupid but I enjoy hearing the stereo and am not interested in a wing.

 

Lots of posts on this, almost daily in fact.
Use the search feature and read up..

 

You might want to try some stock mufflers from an 09 that didn't come with the cat, since the cat reduced the noise level MOCO opened the mufflers up a little to keep the sound about the same.

 

try some supertrapp style mufflers. YOu can adjust the sound level to your tastes.

 

supertrapps supermegs or the S/E branded fatshots ( or nightsticks with closed end caps) loud or as quiet as you want- the stacked disc system allows for high flow while breaking up sound waves

mike