Its no where near -JUST- 90hp for a GT. There are a lot more factors to consider when comparing the GT and Pony Package. The GT isn't just the same V6 with some more hp...its a V8. Those two extra cylinders to make a difference. Trust me. There's a lot more to consider like I said. And if you're trying to convince yourself to do it, then it's not what you need to do. Make sense? Not saying you are or anything. And I'm just trying to be helpful.