Maxton Design Side Skirt Diffusers for BMW i3s Mk1 Facelift
Add a sharper, lower look to your i3s with gloss black side skirt diffusers that fit neatly and look factory fresh. Designed using 3D scanning, they follow the BMWs body lines for a clean OEM+ finish. Lightweight ABS plastic gives a strong, durable result with a touch of flexibility for everyday use.
Made from automotive-grade ABS and finished in gloss black, they arrive ready to fit. No painting or trimming is required. The set includes both left and right diffusers along with a fitting kit and printed instructions.
These diffusers subtly extend the side profile to visually lower the car. The result is a sportier stance without compromising day-to-day practicality.
Fitment
Purpose-built for BMW i3s Mk1 Facelift models from 2017 to 2022. Use our vehicle lookup or see the Vehicle Fitment tab to confirm compatibility with your car.
Whats included
- Side skirt diffusers – left and right
- Fitting kit
- Fitting manual
Key details
– Material: ABS plastic (automotive grade), TUV MATERIALGUTACHTEN certified
– Finish: Gloss black
– Design: 3D scanned for precise fit, lightweight with slight flexibility
Important: The product ships with a protective film. Only remove it once you are certain the parts fit your vehicle. Removal of the protective film or the holographic verification sticker will void returns. Professional installation is recommended unless you are confident following the supplied manual. We cannot accept responsibility for incorrect installation or use. Please compare your vehicle with the listing details to ensure correct fitment.
Choosing a Kit
Our vehicle registration lookup system cannot detect factory trim level. It is important for customers to check the specification of their own vehicle against the product description, and if their vehicle has an existing sports trim level, body kit or factory enhancement that may cause it to look different from other similar models.
For example: Volkswagen R-Line, BMW M-Power/M-Pack, Audi S-Line, Ford ST-Line, Merc AMG-Line, Seat FR.
These kits will not fit models that don't meet these specifications.
Returns
Purchased the incorrect kit for your vehicle? Or not sure you like the surface finish when it arrives? No problem!
Maxton Design products are eligible for return if the product has not been fitted, drilled, modified or damaged in any other way and still has the protective factory film intact. Unfortunately, there are no exceptions, this applies to fully removed and partially removed films.
Products with a protective film in place are clearly marked with this sticker, if you believe there to be an issue with the product but you can't tell without removing the film, please contact our support team directly for assistance.
DO NOT REMOVE THE FACTORY FILM UNTIL YOU'VE LINED IT UP, AND YOU'RE READY TO FIT THE PART.
See our Terms & Conditions for more information.
Installation & Fitting
Instructions & Guides
Maxton Design provide either an online reference (below) or printed instructions with their products, we can't stress enough how important it is to follow these guidelines. Not only does this create a safe, aesthetically well fitted product, but it increases the longevity and lifespan of the kit.
Neither Progressive Parts nor Maxton Design will be able to provide and support or warranty for products fitted incorrectly. For example, front splitters require the front bumper to be removed, without doing so the bolts will be incorrectly positioned and may not be able to cope with the down-force exerted on it. Straying from the guidelines in this manner must be done so at the owners risk.
Fibreglass & "Non-Prepped" Products
By adding these products to your basket you are agreeing to the below statement.
All Maxton Design Fibreglass products including certain bumpers, spoilers, spoiler extensions and skirts will require “prep” before installing.
These are not a simple 'ready to fit' modification. In transit, the items may get chipped or marked and as such prior to painting it is important you understand that the parts may require filling, sanding and repairing (defined "prep") prior to paint being applied, which can be undertaken by any reputable body shop at minimal cost.
Return requests based on not anticipating the definition above are not accepted, please be aware you have agreed to this statement and the definition of “prep” work required prior to purchasing.
Product images shown for sale often indicate a finished product, the colour shown on the vehicle is for illustration purposes.
Fitting Manuals
Please note, Maxton Design products are only available for UK shipping.
Including Northern Ireland, Scottish Highlands and Channel Isles. Delivery fees apply.
Additional Information
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