Rear Diffuser, Aggressive Variant - WRX/STI (VA)

747.95 679.95 679.95 USD


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The Verus Engineering 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 Aggressive Rear Diffuser was designed for owners looking for function and form; specifically with an aggressive strake design to really make the diffuser stand out.


  • Rear Diffuser

  • Rear Diffuser Brackets

  • Hardware Kit, Includes All Necessary Components for a Seamless Install



 Reduce Drag

Reduce Lift (Increase Downforce)

Improved Overall Aerodynamic Efficiency (Increase L/D)

Increase Tire Grip at Speed

Simple, Non-Invasive Bolt-on Design


  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.


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.





Install Manual

Informative Packet


Stock Exhaust - STI and WRX

Agency Power Exhaust

Blitz Nur Spec

Blitz Nur Spec F-TI

Borla Exhaust

CNT Racing Axle-back with 4" Muffler Exhaust

Cobb Exhaust

Corsa Exhaust

ETS Exhaust Sysemts

Greddy Supreme SP

HKS Hi-Power (all)

HKS Legamax

HKS Super Turbo


Invidia N1 single and dual

Invidia Q300 dual

Magnaflow Exhaust

Milltek Exhaust System


Nameless axle and cat backs


RCE Clubsport


Turbo XS

X Force