First post here so please be gentle...

I will apologize if this question has been asked before but the search function does not appear to be working at this time (syntax?).

I have a 2013 H-D FLD also known as the Switchback. It has floorboards so don't know if the standard FXD fitment will work. Can anyone tell me if they have fitted the SuperMeg complete system on an FLD and if there was anything special necessary.

While I'm at it I would like to also like to ask how many rings should be used to keep the same back pressure (and therefore tuning) as would be used on the Screaming Eagle Nightstick with the stock headers and catalytic converter.

Thank you.