Verus Engineering Rear Diffuser for Mazda MX-5 ND

£1,008.16 inc. VAT

Available to order — ships in under 10 working days

The Verus Engineering Rear Diffuser combines function, form, and science to deliver unparalleled fit, performance, and style to your Mazda MX-5 ND. The diffuser reduces lift, drag, and improves the cosmetics of your ND. The unit is adjustable vertically to fit a variety of aftermarket exhaust systems.? The Verus rear diffuser is produced from sheet aluminium; increasing the longevity of the units usable lifespan.

Utilizing state-of-the-art analysis software during the R&D process, Verus 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; they utilized in-house scan data. This resulted in a product that features a near OEM fit and finish.

This rear diffuser is designed for owners looking for function and form; specifically with a non-aggressive strake design to give your ND a subtle and clean rear-end look.


The Verus Engineering diffuser decreases the overall lift and reduces the drag of the ND Miata. Since the diffuser decreases lift and reduces drag, the overall aerodynamic efficiency is improved. The diffuser strakes help create vortices that keep flow attached to the diffuser surface.

The diffuser creates a low-pressure zone where the diffuser is located and also creates a lower pressure zone in the middle of the chassis. This equates to a small change in aerodynamic balance. The Verus Engineering diffuser helps the ND Miata get more from the tires at the track and also increases gas mileage on a daily driver. The diffuser will be a great addition on either a normal daily driver or a track rat.


  • CFD Optimised Design
  • CNC Laser Cut
  • CNC Press Brake Bent
  • Powder Coated low gloss black
  • Stainless fitting hardware
  • Unique strake to mainplane construction
  • Made in the USA


Installation Instructions

Additional information

Shipping Weight 8 kg
Shipping Dimensions 165 × 38 × 20 cm

Verus Engineering


Mk4 (15-24)

Warranty information

Warranties cover defects in materials and workmanship only. Warranty is for replacement of a similar product, repair of the original product or refund of the purchase value only and excludes all labour and incurred charges including towing, fitting, inconvenience, and purchases of other manufacturer's products. The warranty is good for the period stated in the additional info tab from the date of purchase. Mileage warranties are for road use only and proof of mileage is required. Products must be installed by an independent experienced professional mechanic and the suspected defect must be present at the outset. The warranty does not cover damage caused by incorrect installation, failure to comply with the maintenance requirements of the vehicle, processing or otherwise changing the product, ordinary wear and tear, or any other external influences. Warranties are invalid if the product is used for racing, rallying, drifting, track days or any other form of motorsport or competition. Please refer to the manufacturer's own warranty documentation for more information.

Making a warranty claim

Proof of purchase receipt showing the date of purchase, proof of mileage at installation, proof of current mileage and invoice of the work undertaken by an independent experienced professional mechanic must be supplied along with the returned products for a warranty claim to be considered. If your vehicle needs to be used whilst your warranty claim is considered replacement parts from the same manufacturer should be purchased through BOFI Racing. In the event of a successful warranty claim, we will refund the card that was originally used to purchase the replacement parts, in full or in part depending on the nature of the claim. BOFI Racing reserves the right to make full or partial compensation at its sole discretion depending on the condition and mileage use of the returned suspect parts. For example, if you have used the part for several thousand miles before a defect is noticed, only partial compensation may be offered.

Make Model Year
Mazda MX-5 IV (ND) 2015 - 2023

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