I have a 2012 triglide with SE 255's, V&H dresser duals head pipe and V&H pipes. The dealer installed the SERT tunner and programed it for me. The problem I am having is around 3000 rpm I get a lot of pinging. The hotter it gets the worse the pinging. I have been told by another dealer they have had problems with the SE tunners, without putting the trike on a dyno. No dealer around here has a trike dyno. I also noticed my air cleaner cover and horn have a white powder on them and are turning blue. Any help out there? Thanks