Obviously, with a rear wing, you can adjust rear downforce. How come when I buy the rear wing and front splitter/sides, I can still only adjust rear downforce? I've tried this with two cars so far, and in both cases, I bought the front and rear aero pieces at the same time (select each, then click "Buy Aero" to buy both), in case that makes a difference. Considering how insanely overpriced these pieces are, I'm not happy.