Non-Aggressive Rear Diffuser - WRX/STI (VA)
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Non-Aggressive Rear Diffuser - WRX/STI (VA)
The Verus Engineering Non-Aggressive Rear Diffuser combines function, form, and science to deliver unparalleled fit, performance, and style to your WRX/STI.
Utilizing state-of-the-art analysis software during the R&D process, we were able to extract more performance for the given build volume; increasing downforce generated and drag reduced from the addition of the rear diffuser to the VA chassis.
During the design process; we utilized in-house scan data. This results in a product that features a near OEM fit and finish.
The Non-Aggressive Rear Diffuser was designed for owners looking for function and form; specifically with a non-aggressive strake design to give a subtle and clean rear-end look.
WHAT IS INCLUDED
- Rear Diffuser
- Rear Diffuser Brackets
- Hardware Kit, Includes All Necessary Components for a Seamless Install
FEATURES
- Reduce Drag
- Reduce Lift (Increase Downforce)
- Improved Overall Aerodynamic Efficiency (Improved L/D)
- Increase Tire Grip at Speed
- Simple, Non-Invasive, Bolt-on Design
SPECIFICATIONS
- CFD Optimized Design
- 5052-H32 Sheet Aluminum Composition
- CNC Laser Cut
- CNC Press Brake Bent
- Powder-coated Low Gloss Textured Black
- Stainless Hardware Throughout
- Unique Strake-to-Mainplane Construction
- Made in the U.S.A.
SCIENCE
The Verus Engineering Ventus 1 package decreases the overall lift and reduces the drag of the VA WRX. The components end up improving the aerodynamic efficiency of the vehicle as a result. The diffuser helped create vortices that keep flow attached to the diffuser surface. The diffuser creates a low-pressure zone in the rear while the splitter creates a low-pressure zone in the front. This equates to a well-proportioned aerodynamic balance for the WRX.
The Verus Engineering Ventus1 package helps your WRX get more from the tires at the track and also increase gas mileage on a daily driver. The rear diffuser in the Ventus 1 package is a great addition to both daily drivers and track addicts alike.
Returns
Returns
Effective 3/3/2025, returns are accepted within 120 days of the purchase date. We ask that you return the item in its original packaging. If the item is not in its original packaging or is not in brand new condition, the refund amount will be adjusted to account for repacking costs. Please note:
- Return shipping is to be covered by the customer.
- A 15% restocking fee and the original shipping cost will be deducted from the refund amount.
- If the item is in stock and hasn’t shipped, we offer a refund minus a 4% processing fee.
- We do not accept returns on Racer Special items.
Warranty
Warranty
All of our performance auto parts come with a 1-year limited warranty covering manufacturing defects. If you have a warranty issue or any questions regarding what is covered, please feel free to call, email, or fill out our contact form.
If items are missing from the shipment or the shipment is damaged in any way, we must be contacted within 30 days of the arrival of the product. If we are contacted after 30 days, the replacement parts will be covered by the customer or dealer.
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Shipping Notice
Some oversized, heavy, or specialty items may incur additional shipping charges based on your delivery location. If this applies to your order, our team will contact you after checkout with the updated cost. Orders will not ship until additional charges are confirmed and paid.

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Shop confidently at our Revline Performance, where your safety and satisfaction are our top priorities.
$749.95
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FAST SHIPPINGOn thousands of in-stock parts
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Verus Engineering
When it comes to performance car parts, Verus Engineering stands out as a top choice due to our relentless dedication to quality, innovation, and performance enhancement. Our comprehensive approach to design, rigorous testing, and meticulous manufacturing process ensures that every performance part remains to the highest standard. We start with designs using state-of-the-art methods that are validated and tested under the most rigorous track conditions to guarantee durability and longevity.
When purchasing from Verus, you're not just buying a car part but investing in a meticulously designed product crafted to elevate your vehicle's performance to the next level.
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Curated from trusted manufacturers
30,000+ Performance Parts
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Shipped directly from verified suppliers
99% Order Accuracy
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Driven by real enthusiasts
4.9★ Customer Rating