Shelby's never had a rear decklid pedestal spoiler like your '05. They had absolutely nothing there in 65-66, and in 67-70 they had a ducktail. So there's really no analogy between "Shelby-inspired" style and the spoiler on your '05. Don't worry, your spoiler looks great. Just many of us here like the purer less-cluttered basic form. Have fun!!!!!