Verus Engineering Rear Diffuser - Focus ST Mk3: 2013 - 2018 Ford Focus ST

  • $599.95
  • Save $60

The Verus Engineering rear diffuser combines function, form, and science to deliver unparalleled fit, performance, and style to your Focus ST. Utilizing state-of-the-art analysis software during the R&D process, Verus was 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; Verus 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

  • Specs

    • 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.