There are several on that site that might be good for heat extraction and lowering under hood air pressure.
http://www.ilovebodykits.com/product/29570/AIT_Racing_05_09_Ford_Mustang_Type_6_FRP_Hood.html
THe above hood is only $311.50. The body shops near me charge about $200-$300 to paint hoods to match the color of your car. That codl be cheaper than some of the $600-800+ carbon fiber hoods.
http://www.ilovebodykits.com/product/92379/2005_2009_Ford_Mustang_Colt_Hood.html
http://www.ilovebodykits.com/product/33985/Cervini_2005_2008_Ford_Mustang_Heat_Extractor_Hood.html
http://www.ilovebodykits.com/product/6894/Seibon_05_07_Ford_Mustang_TS_Carbon_Fiber_Hood.html
http://www.ilovebodykits.com/produc...stang_2dr_Heat_Extractor_Carbon_Fiber_Ho.html