Install is pretty easy. You just gotta find a nice pattern to make sure the whole header gets wrapped. Took me about 45 min to do this.
I really love this. My CF hood use to be so hot to touch. Now, even after a hard run, my hood is cool to the touch. Engine noise is also way down. I cant hear anything when i am stopped. The usual honda valve ticking has completely subsided.
On another note. If you are afraid of your header cracking or dont have the means or money to replace the one you have, do not wrap your header. There is a great possibility that the header will in fact crack. Right now, i am at the point to where i want it to crack so i can buy a nicer header. Overall i give header wrap an A.