All factory built race cars had a competition heater delete kit and this heater delete was one of the key components.  The purpose was to reduce weight and give the engine bay a sanitary competition look. This plate is stamped aluminum and covers the hole where the heater box motor protruded through the firewall. The originals were used in the 1965 Shelby R-Model race cars and the AFX Mustang drag race cars. This piece will add an authentic finishing touch to your ’65 – ’66 Mustang race car or street car.