Verus Engineering VB Bottm Mount UCW Rear Wing Kit - 2022+ Subaru WRX

The Verus Engineering UCW Rear Wing is a track-focused rear aero solution for the Subaru WRX (VB), designed to significantly increase rear downforce, improve high-speed stability, and reduce lap times. Engineered to bolt directly to the factory trunk and handle real aerodynamic loads, this bottom-mount wing delivers serious performance while maintaining a design that complements the VB’s factory body lines.

Using state-of-the-art analysis tools, including ANSYS adjoint solver and rigorous CFD, Verus optimized the UCW airfoil within the available build volume (derived from their V1X profile) to ensure the wing sees clean airflow and performs consistently on the VB chassis. In-house scan data was used throughout development to achieve near-OEM fit and finish, from mount placement to endplate alignment.

VB WRX Verus Bottm Mount UCW Rear Wing Kit

Key Features

• Track-Ready Downforce: Capable of generating and withstanding 500+ lbs of rear downforce when paired with an appropriate front aero package.
• Optimized Airfoil: Airfoil shape developed using ANSYS adjoint solver and refined via wind tunnel testing for a strong lift-to-drag (L/D) balance.
• CFD-Validated Design: Extensive CFD work ensures the wing sees proper airflow on the VB WRX and performs as modeled.
• Bottom-Mount UCW Layout: Sleek trunk-mounted uprights that visually flow with the VB’s rear design and provide a robust mounting footprint.
• High-End Materials: 2x2 twill pre-preg carbon wing element, autoclave cured with high-gloss automotive clear, and 6061-T6 machined aluminum mounts.
• Complete Hardware & Templates: Stainless hardware and templates are included to simplify installation and alignment.

Why We Like It

This UCW wing is ideal for VB owners running a serious front splitter or full aero package who need real rear grip to balance the car. It offers a substantial bump in stability and confidence without looking out of place on the factory trunk. For drivers who want similar performance with a different visual style, Verus also offers a Swan-Neck UCW variant modeled after the 24 Hours of Nürburgring WRX.

Angle of Attack & Tuning Range

The UCW Rear Wing is designed to operate from approximately 0 to 15 degrees angle of attack, giving you flexibility to dial in rear grip and balance for your specific tire setup, track, and front aero configuration.

Confirmed Fitment

• 2022+ Subaru WRX (VB)

Specifications

• Wing Element: 2x2 twill pre-preg carbon fiber, autoclave cured, high-gloss automotive clear
• Mounting Kit: 6061-T6 aluminum, machined in-house on 5-axis CNC machines
• Hardware: Stainless hardware throughout
• Mount Style: Bottom-mount trunk uprights with wide-footprint bases
• Downforce Capability: Engineered to generate and withstand 500+ lbs of downforce
• Aero Package: Designed to pair with Verus front aero (such as the Front Splitter Kit) as part of the Ventus 3 package

Production & Lead Time

• UCW wings are assembled per order and typically ship within 5 business days from receipt of order unless otherwise specified by Verus.

What’s in the Box

• (1) Carbon fiber UCW rear wing assembly
• (2) Machined aluminum rear wing uprights
• (2) Machined aluminum rear wing trunk mounts
• (2) Carbon fiber rear wing endplates
• (1) Hardware kit with all necessary stainless hardware and installation templates

Science & Development

The UCW Rear Wing was designed specifically for the VB WRX enthusiast who needs substantially more rear-end downforce. As part of Verus’ Ventus 3 aerodynamic kit, the wing is intended to balance significant front aero additions, such as their Front Splitter Kit, to improve overall stability and cornering speed.

CFD analysis and real-world testing showed strong correlation between simulated and measured performance, validating both the aero design and the development process. The result is a wing that not only looks purpose-built but also delivers predictable, repeatable aerodynamic behavior on track.

Bottom-Mount vs. Swan Neck UCW

Verus offers this UCW wing in both bottom-mount and swan-neck configurations. The bottom-mount version emphasizes a cleaner OEM+ look with trunk-mounted uprights, while the swan-neck design offers a more aggressive endurance-racing aesthetic inspired by the Nürburgring WRX. Verus provides a comparison video (available on their site) explaining key differences to help you choose the right style for your build.

Verus Engineering Making The UCW Wing

Installation Notes

• Designed to mount to the factory trunk; drilling is required for mounting the uprights.
• Use the included templates to mark trunk hole locations and ensure proper alignment.
• We recommend professional installation for accurate drilling, sealing, and torqueing.
• After installation, verify trunk operation and re-check all hardware after the first track day or heat cycle.

Compatibility & Disclaimers

Intended for 2022+ Subaru WRX (VB) factory trunk. This is a performance-oriented aerodynamic component; trunk drilling and permanent modifications are required. Aerodynamic balance depends on the complete vehicle setup (front aero, suspension, alignment, and tires). Always verify local regulations regarding exterior aero modifications for street-driven vehicles.