Recently purchase new Ultra Classic with 110 Screaming Eagle. Dealership had put on ThunderHeader slip on mufflers (part 1061). At the 1K service, the dealership has agreed to replace the pipes and do a dyno run and remap. They said that the discolaration was due to improperly mapped engine? What else if anything should I ask the dealer? I do like the sound of the mufflers. I am not a tech person but I sure do love to ride.......