Help appreciated with Screaming Eagle Stage IV 4.5" pipes

[Lightwarrior]

Need instructions on altering the baffles to get a deep throaty sound and take the catalytic converter out. Will it need back pressure plates/ Will it need remapping? 2018 CVO Street Glide Stage IV

Thanks
Lightwarrior

 

[TomA]

You shouldn't need a retune unless the air filter has been changed out. Not sure if you want to drill them or if you can get them out do some cutting to get the sound your looking for.

 

[Mojo]

FYI: I'm running 4.5 Rineharts and stock air cleaner WITH a K&N1717 filter. No tuner, runs great!