This is the first problem I have had. When coming home from work I noticed she was running a little sluggish after the first 5 miles. It was about 85 and humid today, in the 90's yesterday and she ran great. Running at 80mph and twist the throttle the pull I am use to wasn't there and then when I was going up a hill I had the throttle pegged to the stop just keeping steady at 80 in sixth at 3000rpm. I have V&H true duals with Rush slip-ons with stock air cleaner (these have been on for over a month), I just replaced the plugs and oil last week. Oil pressure was fine, 93 octane fuel, tires at correct pressure and brakes are not dragging.