I have some extensive plasti dip trials and errors, i do not believe it will take the heat under the hood. I would use 500 degree engine enamel same as brake calipers, otueriwise you are asking for some dip failure. The stuff is extremely user friendly and is not partial to one material or another (plastic,metal,tile, wood, etc). I dipped my strut tower brace and got bubbling on that piece, so i had to peel it. I hope im wrong because it looks very good! Ill be matte black enamel my paxton when i receive it and the mustang will be getting a fresh dip job for the season.