I wrapped the pipes on my VV today and was surprised at how much it quietened it engine area noise down. I had thought it may do that some but my wife noticed it without me saying anything. She said "it's quieter now". Which is ok with me, now my V&H's sound is all out the back. I was able to turn the stereo volume down from 10 to 8 on the road now but this is also the first time I have got to ride since installing rear speakers. They make the stereo sound like you have a headset on now. It was so much cooler after the rain I couldn't tell much about the heat from the pipes but it sure seemed like it was better. I should have done this months ago...