Roush 2018-2023 Ford Mustang Rear Valance Aero Foil Kit (Excl. EcoBoost/GT350)

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  • Manufacturer Part Number: 422085
  • $139.99
    Unit price per 


  • WARNING: This product may contain chemicals known to the State of California to cause cancer or birth defects. PROP65 INFO
Ready to race, or just show off the performance capabilities of the 2018-2021 Mustang Add ROUSH Rear Valance Aero Foil Kit, designed to work with the factory quad-tip GT valance! Designed utilizing techniques used in racing to improve aerodynamic efficiencies, ROUSH Rear Valance Air Foils work to separate the airflow beneath the car, allowing a smaller portion to follow the under-body contours, adjusting rear downforce. Each piece is made from high-strength TPO (thermal plastic olefin) with a black stipple finish, for an OEM look and lasting durability. The plastic is molded with high-pressure injection, the same process used by OE automotive manufactures, which allows for impact resistance and durable flexibility, while remaining lightweight with low density.

This Part Fits:

Year Make Model Submodel
2019-2020 Ford Mustang Bullitt
2018-2023 Ford Mustang EcoBoost
2018-2023 Ford Mustang EcoBoost Premium
2018-2023 Ford Mustang GT
2018-2023 Ford Mustang GT Premium
2021-2023 Ford Mustang Mach 1
2018-2020 Ford Mustang Shelby GT350
2018-2020 Ford Mustang Shelby GT350R
2020-2022 Ford Mustang Shelby GT500