You know Jim I never considered that the heat in the footwell would get worse, it's damm hot in there to start with and that's with my shorts on. As luck would have it I'm just on with removing the engine so I'll be able to attack the manifold from all angles, seems a re-wrap is the way forward. I tried a black metal exhaust clamp on the silencer and yeah the coating came off after a while guess there's not much that stands up to the heat.