I have a 2002 Fatboy. Installed a stage I kit and changed the pipes to Python III slip ons. Installed a Revtech DFO. Did not get a flash or remap. For awhile the bike ran great. It always ran a little rich when it was cold and would sometimes sputter a bit during third to fourth gear acceleration but this would go away once the bike warmed up. But now I'm having this sputtering problem even when the bike is warm. I've adjusted the settings on the DFO when the bike is warm to try to get it run a smoother. I've checked all of the wiring to ensure that nothing has come loose. The whole set up is less than a year old. The bike is even cutting off on me while going down the road. I've changed gas several times. Anybody have any idea what is going on with this thing?