If I had more money I would mod my old F150. But I'm too busy planting money in my Mustang. If you like what you got and want to play with it, go to town. Mod everything. Make it your own. I've tried to mod every car I have ever owned except my truck. None until the Mustang ever showed any improvements in performance but I had a better understanding of what I was doing by the time I got my Mustang. Stangs are meant for modding, unless you got some fancy special edition, super rare, collectible, Barrett Jackson, investment car. Those aren't really cars anymore anyway. Those are some rich guys garage ornament which doesn't ever see the road.