Cart 0

Verus Engineering Rear Diffuser PRE-ORDER - Fiesta ST 2014-2019

$ 637.95

Available exclusively at whoosh motorsports :

The Verus Engineering rear diffuser combines function, form, and science to deliver unparalleled fit, performance, and style to your Fiesta ST.

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.

During the design process; we utilized in-house scan data. This resulted in a product that features a near OEM fit and finish.

The rear diffuser was designed for owners looking for function and form; specifically with an aggressive strake design to give that aggressive and track-ready look.


  • Reduce Drag

  • Reduce Lift (Increase Downforce)

  • Improved Overall Aerodynamic Efficiency (Increase L/D)

  • Increase Tire Grip at Speed

  • Simple, Non-Invasive Bolt-on Design

  • Revised fin design from the original pictured


  • CFD Optimized Design

  • 5052-H32 Sheet Aluminum Composition

  • CNC Laser Cut

  • CNC Press Break Bent

  • Powder-coated Low Gloss Textured Black

  • Stainless Hardware Throughout

  • Unique Strake-to-Mainplane Construction

  • Made in the U.S.A.



PRE-ORDER payments are non-refundable 

Estimated ship date for the new diffusers is 4-5 weeks / end of September 2023


Customer Reviews

Based on 1 review Write a review

More from this collection

Customer Reviews

Based on 1 review
david riden
Great design, good looking, difficult though.

5 stars for the looks and design, 3 stars for the install issues they don't tell you about. The installation seems pretty straight forward, BUT, the interior bolts that attach the diffuser to the mounting brackets, especially the rear driver side bolts, are HARD to get to. Also, if you have a rear anti-sway bar (Eibach or other) installed, it takes up about 75% of the room that you need to get your fingers in to attached the bolts to the front section of the diffuser to the mount point. Even if you had paper thin fingers, there is no way in H-E-double hockey sticks to get the nut on the back side of the bolt, if that's the case. The rear sway bar MUST come off.