Check this out before you buy the new 2007 Harleys. I have spent over 1500.oo myself to get this worked out. The best part was to get a Harley Race Tuner and then some Screaming Eagles slip-on Mufflers 05-06 and have it remaped. Then a stage one kit. They still have a problem with Heat off the motor but I bought some Heat Shields from :shamrockride.net and they did the trick. You can get the ones without police on them folks. Now I don't have to stand up in Heavy Traffic. Harley is doing a Ecm Calibaration upgrade(product program 0903) but it still doesn't help the heat. Hope this helps!