i gave what i had left to a buddy of mine, and he said after he drove his car around, he popped the hood after and there was some white smoke coming off of the wrap.
he said it didnt burn up, just freyed around the edges
the company I used to sell was DEI and they sold a silicone paint that you are supposed to coat the wrap with once its on and tight. This will make it more like a cast and it wont allow condensation to form underneath and rust your manifold.