I installed a set of Fatcats (2-1) on my FXDSE2 and I can notice a vibration in the handlebars. Not a huge vibration, but enough to make my hands tingle (numb) and not in a good way. Exhaust doesn't appear to be rubbing or resting anywhere against the bike.

I'm thinking of inserting a rubber washer between the frame mounting tab and the D&D header tab.

Anyone else expereince this?