Sorry JCruiser, I wasn't aware of the visitor message you left me until now, i sincerely appoligise. The louvers on my GT are from the factory. They came with the Accessory Package 5 (pedestal spoiler, louvers, side scoops, hood scoop, rear deck lid panel). You can also get them with Accessory Package 1 (louvers, side scoops & rear deck lid panel). Last but not least, order them seperately from ford dealer parts dept, have them painted to match your car and installed.