Manufactured by RK Sport - Part Number RK Sport 0018, 1964-66 Ford Mustang Shelby GT Replica Hood, Fits all 64-66 Models, RK Sport Ram Air Hoods are ducted to your factory air cleaner location. Add a cold air intake to make them fully functional. On some models you simply need to install a cold air intake or open up the top of your factory air box. Product information updated on 2022-01-31