Description
The Verus Engineering Aggressive Rear Diffuser combines aerodynamic function, aggressive styling, and advanced engineering to improve the performance and appearance of the VA Subaru WRX/STI.
Using state-of-the-art aerodynamic analysis during development, Verus Engineering optimized the diffuser to extract additional performance from the available underbody space. The design increases rear downforce while reducing drag, improving the overall aerodynamic efficiency of the VA chassis.
Verus Engineering also utilized in-house 3D scan data during development to achieve a near-OEM fit and finish.
The Aggressive Rear Diffuser is designed for owners who want the performance benefits of a functional rear diffuser with a more prominent visual presence. Its aggressive strake design makes the diffuser stand out while maintaining a purpose-built aerodynamic function.
Fitment
Subaru WRX – VA
Subaru WRX STI – VA
Designed specifically for the VA-generation WRX/STI chassis.
What's Included
- 1 × Rear Diffuser
- 1 × Rear Diffuser Bracket Set
- 1 × Hardware Kit with all necessary installation components
Key Features
- Reduced Drag: Designed to reduce aerodynamic drag while improving overall vehicle efficiency.
- Increased Downforce: Reduces rear lift to increase aerodynamic load at speed.
- Improved Aerodynamic Efficiency: Optimizes the vehicle's lift-to-drag relationship.
- Increased High-Speed Tire Grip: Additional aerodynamic load helps improve tire grip at speed.
- Aggressive Styling: Aggressive strake design gives the rear of the VA WRX/STI a more prominent, performance-focused appearance.
- CFD-Optimized Design: Developed using advanced aerodynamic analysis to maximize available underbody performance.
- Near-OEM Fit and Finish: Designed using in-house 3D scan data.
- Simple Bolt-On Installation: Non-invasive design allows straightforward installation.
- Functional Aero: Provides aerodynamic benefits for both daily-driven and track-focused WRX/STI applications.
Specifications
- Application: Subaru WRX/STI VA
- Design: CFD optimized
- Material: 5052-H32 sheet aluminum
- Manufacturing: CNC laser cut and CNC press brake bent
- Finish: Low-gloss textured black powdercoat
- Hardware: Stainless steel throughout
- Construction: Unique strake-to-mainplane construction
- Manufacturing Location: Made in the U.S.A.
Aerodynamic Science
The Verus Engineering Ventus 1 package is designed to reduce overall lift and drag on the VA WRX while improving the vehicle's aerodynamic efficiency.
The rear diffuser helps create vortices that encourage airflow to remain attached to the diffuser surface. This allows the diffuser to effectively manage underbody airflow while creating a low-pressure zone at the rear of the vehicle.
When paired with a properly designed front splitter, which creates a low-pressure zone at the front of the vehicle, the rear diffuser contributes to a more balanced aerodynamic package across the WRX.
The result is improved aerodynamic efficiency that can help the vehicle make better use of its available tire grip during track driving. Verus Engineering also positions the Ventus 1 package as suitable for daily-driven vehicles, where its aerodynamic efficiency can contribute to improved fuel economy.
Ventus 1 Aerodynamic Package
The Aggressive Rear Diffuser is part of the Verus Engineering Ventus 1 aerodynamic package for the VA WRX. The package is designed to provide a balanced combination of front and rear aerodynamic components, reducing lift and drag while improving overall aerodynamic efficiency.
Installation
The diffuser uses a simple, non-invasive bolt-on design and includes the required brackets and stainless hardware for installation.
