2018 ROUSH Mustang Rear Valance Aero Foil Kit

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Part #: 422085

Financing available for purchases over $99 or more

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International Purchases & Shipping

Prices stated here are only for sales within the continental United States and ordered via the ROUSHperformance.com web site. Prices for other territories, such as Canada, may vary due to shipping fees, duties, and other factors.

Orders placed via ROUSHperformance.com can only be shipped to areas within the continental U.S. If you live in Canada, please call customer service at 800-597-6874 for pricing and shipping costs. All other international orders must be placed through an authorized ROUSH dealer.

Product highlights for the 2018 ROUSH Mustang Rear Valance Aero Foil Kit:

  • New for 2018 model year
  • Fits 2018 Mustang GT - will NOT fit EcoBoost or GT350
  • Add to the factory rear valance for an aggressive look inspired by racing
  • Made from injection-molded TPO (Thermoplastic Poly Olefin) with a black stipple finish
  • Offers OEM look, long-lasting durability, and flexibility
  • Lightweight and impact resistant
  • Designed with OEM CAD data to ensure precise fit
  • Includes all required hardware, templates, and instructions
  • Minor modification to rear valance for mounting is required
  • Estimated installation time - 1 hour
  • 90-Day ROUSH Limited Parts Warranty

Ready to race, or just show off the performance capabilities of the 2018 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. Couple these foils with the ROUSH Lower High-Flow Opening (P/N 422081) and 3-Piece Chin Spoiler and Wheel Shroud Kit (P/N 422082) for the complete lower aero package!

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. Easy installation means no trimming painting is required (drilling for mounting is required). All required parts are included, such as hardware, templates, and detailed instructions.

Application Mustang (2018)
Difficulty Easy
Time 1 hour
Tools Basic tools
Instruction URL Download Instruction Manual
Install Video URL No
SUBTLE. SLEEK. AND SEXY Review by bpuga90
Just got done with the install and man do I have to tell you such a subtle parts makes the rear of my pony look that much leaner and sleek! Only took about 30min to install. Very well written instructions! Highly recommend these if you’re looking for that extra sizzle on your 5.0. (Posted on 4/2/2018)

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