Description
Take the rear-end aerodynamic performance of your Subaru STI GV to the next level with the Verus Engineering UCW Rear Wing Kit. Designed to significantly increase rear downforce, the UCW Rear Wing provides greater high-speed confidence, increased cornering capability, and the potential to reduce lap times on track.
The UCW was developed to bridge the performance gap between Verus Engineering's Swan Neck High-Efficiency Rear Wing and the larger 300mm V1X airfoil. Featuring a 250mm curved chord, the UCW generates more downforce than the high-efficiency rear wing while producing significantly more downforce than similarly sized competitor wings.
Verus Engineering optimized the airfoil using state-of-the-art aerodynamic analysis software and an ANSYS Adjoint Solver, maximizing aerodynamic performance within the available build volume derived from the V1X platform. CFD analysis was then used to ensure the wing receives adequate airflow when installed on the vehicle and maintains strong aerodynamic performance.
In-house vehicle scan data was also used during development to achieve a near-OEM fit and finish.
The UCW is designed for track-focused STI owners who need a significant increase in rear downforce to properly balance a substantial front aerodynamic package.
Important Compatibility Requirement: This rear wing requires the factory STI trunk for compatibility.
Production Note: UCW Rear Wings are assembled per order and ship within 5 business days of receiving the order unless otherwise specified.
Fitment
- Make: Subaru
- Model: STI
- Chassis: GV
- Application: Subaru STI GV
- Position: Rear
- Product Type: UCW Rear Wing Kit
- Required Vehicle Component: Factory STI trunk
- Intended Use: Track and performance driving
- Aerodynamic Package: Verus Engineering Ventus 3
What Is Included
- 1x Rear Wing Element Assembly
- 2x Machined Aluminum Rear Wing Uprights
- 2x Machined Aluminum Rear Wing Trunk Mounts
- 2x Rear Wing Endplates
- 1x Hardware Kit Including All Necessary Installation Hardware
- Trunk Double-Sided Tape
- Endplate Washers
- Endplate O-Rings
Key Features
- Significantly increases rear-end downforce
- 250mm curved-chord airfoil
- Optimized using ANSYS Adjoint Solver
- Improved lift-to-drag ratio
- Designed for strong aerodynamic efficiency
- Capable of generating and withstanding 500+ lbs of downforce
- Bolts to the OEM trunk
- Designed to balance significant front aerodynamic systems
- Operates from 0–15 degrees angle of attack
- Near-OEM fit and finish
- Designed specifically for the GV STI
- Part of the Verus Engineering Ventus 3 aerodynamic package
Specifications
- Wing Material: 2x2 twill pre-preg carbon fiber
- Carbon Construction: Autoclave cured
- Carbon Finish: Automotive high-gloss clear
- Airfoil: 250mm curved chord
- Angle of Attack Range: 0–15°
- Uprights: Machined billet aluminum
- Trunk Mounts: Machined billet aluminum
- Hardware: Stainless steel
- Downforce Capability: 500+ lbs
- Mounting: OEM trunk mounting
- Vehicle Requirement: Factory STI trunk
UCW Airfoil Design
The Verus Engineering UCW Rear Wing was developed to sit between the company's Swan Neck High-Efficiency Rear Wing and 300mm V1X airfoil in terms of aerodynamic performance.
Its 250mm curved-chord profile was designed to generate a substantial increase in rear downforce while maintaining an efficient aerodynamic package. According to Verus Engineering, the UCW produces more downforce than the high-efficiency rear wing and significantly more than similarly sized competitor wings.
The airfoil was optimized around the available build volume derived from the V1X platform, allowing Verus Engineering to extract additional aerodynamic performance from the available packaging space.
Aerodynamic Efficiency
The UCW airfoil was optimized using the ANSYS Adjoint Solver to improve aerodynamic performance and lift-to-drag efficiency.
CFD analysis was also used to verify that the wing receives adequate airflow when installed on the GV STI and performs effectively under operating conditions.
The wing is capable of operating across a 0–15° angle-of-attack range, allowing aerodynamic performance to be adjusted according to the vehicle's setup and driver's requirements.
500+ lbs Downforce Capability
The UCW Rear Wing is designed to generate and withstand more than 500 lbs of downforce.
This substantial rear aerodynamic load makes the UCW particularly suited to track vehicles running significant front-end aerodynamic components. Adding the appropriate amount of rear downforce can help create a more balanced aerodynamic setup and increase driver confidence at high speeds.
Aerodynamic Balance
The UCW was specifically developed for STI owners who require a large increase in rear downforce to balance a significant front aerodynamic package.
Proper front-to-rear aerodynamic balance is essential when increasing downforce. The UCW provides the rear aerodynamic capacity necessary for more aggressive front aero setups, helping create a more balanced performance-oriented vehicle.
Ventus 3 Aerodynamic Package
The UCW Rear Wing forms part of the Verus Engineering Ventus 3 aerodynamic package for the GV STI.
The Ventus 3 system combines the rear wing and other aerodynamic components to significantly increase the vehicle's overall downforce. The additional aerodynamic load is designed to help improve high-speed cornering performance and potentially reduce lap times.
CFD & Real-World Validation
Verus Engineering validated the UCW Rear Wing through both CFD analysis and real-world experimental testing.
The company reports a strong correlation between its CFD results and real-world test data. The wing achieved the major performance targets established during the initial CFD development process and subsequently validated through physical testing.
This correlation provides confidence in both the aerodynamic analysis methodology and the performance of the finished UCW Rear Wing.
Installation
The UCW Rear Wing is designed to bolt to the OEM STI trunk and includes machined aluminum trunk mounts, uprights, endplates, stainless hardware, trunk double-sided tape, and endplate mounting components.
Factory STI trunk required for compatibility.
