Precision Fitment
Each part is 3D-scanned against the platform and digitally modelled before tooling — so fitment is engineered, not approximated.
BMW 4 Series F32 / F33 / F36 Carbon Fibre Side Skirts
£390.00
The BMW 4 Series F32 / F33 / F36 Coupe Carbon Fibre Side Skirts by ASM Sports Tech are top-notch in both design and quality.
- Tracked delivery
- 14-day returns
- ASM warranty
Specialist online — replies in minutes
Speak to ASM before you order
Straight answers on fitment, lead time and build direction — direct from the team that engineers it.
Open WhatsApp LineDoubt removed
before commitment
Every component leaves on one standard: measured fitment, disciplined materials, and a specialist on the line before and after you order. The proof sits below — not the promise.
Composite Construction
Pre-preg carbon and lightweight composite, finished to a consistent standard and built for structural intent — not cosmetic weight.
Support, Both Sides of the Sale
A specialist answers fitment, lead time and compatibility before you order — and stays reachable after it ships.
BMW 4 Series Carbon Fibre Side Skirts
Enhance the side profile of your BMW 4 Series F32, F33, or F36 with the ASM Sports Tech Carbon Fibre Side Skirts. These rocker extensions are designed to give your 4 Series a lower, sportier stance while improving aerodynamic balance.
Manufactured from autoclave-cured carbon fibre, the side skirts are ultra-lightweight yet durable, ensuring long-lasting performance. Their streamlined design helps to channel airflow along the sides of the car, reducing turbulence and improving stability at higher speeds.
Key Features:
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Pre-Preg Carbon Fibre – lightweight, strong, and autoclave-cured.
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Gloss Finish Only – UV-protected gloss clear coat.
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OEM Fitment – precision 3D scanned for perfect alignment.
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Aerodynamic Benefits – channels airflow and reduces turbulence.
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Aggressive Styling – lowers stance and enhances side profile.
Compatible Models:
- BMW 4 Series F32/F33/F36 – 2013 – 2020
Upgrade your BMW 4 Series F32/F33/F36 with ASM’s Carbon Fibre Side Skirts – engineered for style, performance, and exclusivity.
Side skirts specifications
| Brand | ASM Sports Tech |
|---|---|
| Part | Side skirts |
| Material | Carbon fibre |
| Platform | BMW 4 Series F32 / F33 / F36, BMW 4 Series F32 / F33 / F36 |
| Part number (SKU) | ASM3966 |
Why choose the ASM side skirts for the BMW 4 Series F32 / F33 / F36 / 4 Series F32 / F33 / F36
Side skirt extensions connect the front and rear of the car and define how low it looks from the side. The ASM carbon fibre side skirts for the BMW 4 Series F32 / F33 / F36 / 4 Series F32 / F33 / F36 extend the sill line, make the car look lower and wider, and help keep air from spilling under the sides of the car.
It is made from real carbon fibre, not a carbon-look wrap or print, so it is light, rigid and shows a genuine woven finish. Read more in our guide to dry vs wet carbon fibre.
Fitting and care
We recommend fitting by an experienced body shop or tuning specialist. Test-fit every part before final installation, prepare mounting surfaces carefully and use the supplied or recommended fixings. Wash carbon parts like the paintwork, avoid abrasive polishes and protect the clear coat with a quality wax or sealant. Step-by-step advice: How to install side skirts.
Delivery, returns and warranty
Every order ships from the UK with tracked delivery to the UK, Europe and worldwide. Delivery options and costs are shown at checkout and explained in our shipping policy. Unused items in original condition can be returned within 14 days, and return shipping is paid by ASM – see the refund policy. Manufacturing defects are covered by the ASM warranty.
Questions about this part
Which cars do these side skirts fit?
It is made for the BMW 4 Series F32 / F33 / F36 / 4 Series F32 / F33 / F36. Fitment depends on the exact model, bumper and specification, so if your car has a facelift (LCI) bumper, a different trim level or other aftermarket parts, contact us with your VIN or a photo and we will confirm fitment before you order.
Is this real carbon fibre?
Yes. It is made from genuine carbon fibre, not a carbon-look wrap or hydro-dipped plastic. Learn how to tell the difference in how to spot fake carbon fibre parts.
Do you ship to my country?
Yes. We ship from the UK to the UK, Europe and worldwide with tracked delivery. Prices can be shown approximately in EUR or USD, and orders are charged in GBP.
Complete your BMW 4 Series F32 / F33 / F36 / 4 Series F32 / F33 / F36 build
BMW F20 / F22 / F30 / F32 / F10 / M2 / M3 / M4 Carbon Fibre Paddle Shifter Extensions
BMW 4 Series F32 Carbon Fibre Rear Spoiler – PS Style
BMW M3 F82 / F83 & 4 Series F32 Carbon Fibre Double Slat Front Grilles
BMW 4 Series F32/F33/F36 Carbon Fibre Rear Diffuser – With LED- All BMW 4 Series F32 / F33 / F36 parts
- All BMW 4 Series F32 / F33 / F36 parts
- BMW 4 Series / M4 carbon and performance parts
- More side skirts
- ASM aerodynamics programme
The questions
worth asking first
Fitment, installation, materials, lead time and support — the answers that settle the last doubts before you order. Anything not covered, the specialist line is one tap away.
Fitment is defined by the product title, the listed application scope and your platform. If you're unsure, open the WhatsApp line and a specialist will confirm the correct application before you order.
Yes — particularly for carbon aero, exhaust components and platform-specific upgrades, where alignment, finish protection and correct hardware positioning matter to the result.
It depends on the part, but the standard is consistent: disciplined finish, clean visual consistency and resolved platform-specific presentation. Pre-preg carbon and lightweight composite where the application calls for it.
It depends on whether the part is in stock or built to order. The estimated timeline on the product page is the reference to use before checkout — and the specialist line can confirm it for your exact spec.
Yes. For fitment, visual direction, material choice or build planning, use the WhatsApp block on this page and a specialist will guide you before you place the order.
Yes — worldwide shipping is available across most ASM Sports Tech lines. Method and transit time vary by product category, destination and dispatch origin.
Two ways
to order
Order directly with ASM Sports Tech, or through an authorised partner in your region. Same components, same standard — whichever route fits the build.
Regional Access
Prefer a local point of contact? An authorised ASM partner in your region can handle the order end to end.
Project-Based Ordering
Multi-part builds and full upgrade directions are best coordinated as one order — we'll plan it with you before placement.
Direct or Dealer
Order direct from ASM or through a partner — the parts, the fitment standard and the support are identical either way.
ASM Sports Tech — The Programme
Complete the build
Matching components for the same platform — selected to fit alongside what you're ordering and finish the build as one resolved direction.
