I have SE slip-ons whan I bought my bike (05 fatboy) and had it remapped. I what to get some V-H, will I need to remap again?

 

No, there is only one stage 1 remap and it will work with slip-ons or full pipes. I would not recommend removing the baffles though, as you will definatly lose power. You will hear a pop more often with the V&H on throttle release than you will with the slip-ons, but none on accell.