I had header wrap that quickly fell apart and made a mess of the pipes that was difficult to polish out when I removed it.
My advise is don't bother with it, its better to get rid of the heat from the pipes as soon as possible as they run very hot and you haven't got to worry about under bonnet temperature like on a normal car, doubt there would be any noticeable performance gain either.
I tend to agree. I probably wrapped both pipes about 3 times before I finally gave up. When you use the car a lot it gets wet and then hot and then wet and then blown about in hurricane force winds. It eventually falls apart again and again. What it does do is wreck the shine on the pipes though, which for me was actually what I wanted as I prefer the slightly vintage rat look. FWIW, I've never had indicator melting issues without wrap....
