Motorcycle Repair: Mufflers, harley davidson road king, epa standards

Question
I just bought a new 2005 Harley Davidson Road King.I am replacing the stock mufflers with Sampsons mufflers. Do I need to remap the EFI for the new mufflers? Thanks

Answer
Your bike came from the factory a little lean to pass the EPA standards. Changing hte mufflers will make it run leaner, so to answer your question yes. I would, however, add a hiflow air filter kit before doing the remapping. It will help the bike breath better.
Good luck and happy riding
Mike