Product updated on 2019-06-18, RK Sport - RKS:18011000, 05-09 Mustang GTR Code Hood. Following the lines of the Mustang hood, our engineers designed the GTR Hood. , *** NOTE: THIS HOOD SHOULD NOT BE USED WITH ANY TYPE OF GAS STRUT(S), LIFTING AND/OR HOLDING DEVICES. *** , 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 cut open the top of your factory air box.