Hi everyone , I guess I'm one of the lurkers and until now have enjoyed being that and learning lots from you all ,but now my Ultra has a problem and hope you folk's out there can help. I've had my 2007 Ultra now from new and done 14000 miles and it's been reliable with just the normal leaking rear cylinder that was fixed at about 8000 miles ,I'm happy with the bike being more or less stock and once run in I fitted the nightrider XEd's and rush slip ons with 1.75" baffle's for a better sound and to make it run a little cooler and its been great until about 2000 miles ago when I started to get more popping on deceleration and very occasionally when coming to a stop the bike would just die instead of idle,it would restart ok but only by holding the throttle open would it not die again,I did the normal and checked the pipe joints and found that the crossover pipe between the rear cylinder was loose so tightened that and all the other joints ,this seemed to help for a time and the stalling didn't come back but then after a while instead of it occasionally cutting out on idle it would hold 12/1300revs whilst the bike was moving and not until I stopped would it go to 1000,this has been happening more and more and now happens everytime I go out at some point, I've also got more popping on deceleration .So I put the original pipes back on and took the XEd's off ,booked it in at my dealers and rode it the 100 mile to them and it didn't play up at all ,they said that 4 fault codes had come up some for running rich and some lean,i haven't told them about the XEd's or pipes,they said they couldn't fault the bike and suggested I tried it and if it happened again to get in touch with them as the fault was reported to them 4 days inside the warranty. The 100 mile journey back home and another 150 miles today and the bike is still running perfect which tells me something but i dont quite know what . So the question is, do I put the XEd's and pipes back on and if i do and it plays up again what do you suggest I do next .I've been more than happy with the XEd's for 1000's of miles and don't want to go to a race tuner etc if I don't have to.
I'd be very greatfull for any suggestions even if it is FFS get a power commander

Paul