Ready to race, or just show off the performance capabilities of the 2018-19 Mustang? Add ROUSH Rear Valance Aero Foil Kit, designed to work with the factory quad-tip GT valance!

Designed utilising 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.

Product Features:
- Fits 2018-19 Mustang GT - will NOT fit EcoBoost
- Add to the factory rear valance for an aggressive look inspired by racing
- Made from injection-molded TPO (Thermoplastic Polyolefin) 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


Click here to download installation guide.

Installation Information:
Tools Required: Basic Tools
Time of Install: About 1 Hour
Level of Difficulty: Easy

SKU 422085
Brand ROUSH Performance
Unit Of Measure Pair

ROUSH 90-Day Limited Parts Warranty

2018 Mustang Roush rear Valance aero kit

By: on 28 March 2019
Plastic is solid construction and fit is very good. Easy to fit and looks like it is OEM.

Write a product review

Others Also Bought

More From This Category