I just got the D&D pipe set up on mine today. TheTriumph shop only did the Triumph retune which most all of you say is lousy so I'm not expecting much. The sound is better so thats a plus. The main thing I was hoping for was a reduction in heat. I had the headers wrapped and am hoping for some improvement. Its over a hundred degrees here in Las Vegas right now so I'll take the bike out for a couple of hours tonight at about 3am. It will only be 80 or 85 at that time and I can see how it works. Its nice here from 3am till 7am this time of year, after that it starts getting hot. from the middle of September onwards for about 9 months its great weather, August sucks.