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

Ready to race, or just show off the performance capabilities of the 2018-2023 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

## Details

- **Price:** 215.91 CAD
- **Vendor:** Roush
- **Type:** Diffusers

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 215.91 CAD | In stock |

## Images

- Photo - Primary
- User 1
- Logo Image

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/roush-2018-2023-ford-mustang-rear-valance-aero-foil-kit-excl-ecoboost-gt350)
> Updated: 2026-07-01