August 4, 2010 4:49 AM PDT
Looks like I am a little late but I had the same heat issues. When I bought my Ultra I had a set of Rush mufflers installed as well as the Stage 1 kit. Had the Screamin Eagle Race tuner put on and then the bike was on the dyno for 4 hours. Made a lot of improvement. The heat issue appeared after some riding. The wife noticed it first. Back to the shop for some V&H True Duals and 4 more hours on the dyno. This was the ticket. The shop shot thermal images of the engine/exhaust with the stock pipes. They then shot it after the True Duals were put on. It dropped the rear cylinder area almost 200 degrees F. The heat deflectors will not work with my bike because of the adjustable rider back rest. The control gets in the way. The bike shows a 22% increase in horsepower over stock. It has a nice sound with the muffler and pipe combo. The heat issue is all but gone.
Hope this helps.