Aero parts work as a system — a rear spoiler without a front splitter creates imbalance. Functional aero (splitters, diffusers, wings) reduces lift at speed; cosmetic aero (replica wings, hood scoops) is purely visual. Ride height matters: rear diffusers are most effective on lowered cars.
Work with splitters to reduce lift at the rear axle. Most effective on lowered cars; less impactful at stock ride height.
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