[FWB]

i see on my car that the pipes where they exit the fender in the cutout are about an inch from the body, with ceramic coating on the pipes, and the paint is slightly bubbled. i have no idea what kind of paint the car was done with, its 2 stage base coat clearcoat.
i think unpainted fiberglass can take more heat then a painted surface. high temp wire loom is made from woven fiberglass coated with some voodoo resin.