3D Design BMW G82 M4 & M4 Competition Carbon Fibre (Carbon Fiber) Side Skirts (2021+) – CFRP Aero Side Skirt Extensions | 3106-38212

3D Design CFRP Sill Extensions for BMW M4 G82 2021 on

Give your M4 a sharper, lower look with authentic carbon fibre sill blades from 3D Design. Crafted in Japan using an advanced CFRP infusion process, these rocker extensions add real aero efficiency and a premium motorsport aesthetic while maintaining a clean OE plus appearance. If you are searching for G82 M4 sill extensions, rocker panel blades, carbon side splitters or carbon sill skirts for the BMW M4 coupe, this is the benchmark upgrade.

• Full CFRP construction for outstanding strength-to-weight and a crisp carbon weave finish
• Precisely engineered for the G82 chassis for true plug-in fit and factory-level alignment
• Improved side airflow management and a more planted stance for your M car
• Complements front lips and rear diffusers to complete a cohesive carbon exterior

We have installed these on customer cars and our own builds. Fitment, finish and road presence are consistently excellent, and feedback from owners has been outstanding. For enthusiasts who want a high-end carbon rocker upgrade without compromise, this 3D Design solution delivers.

Compatibility

• BMW M4 G82 2021 on
• BMW M4 G82 Competition 2021 on

Part Number

3D Design: 3106-38212

Fitting and Installation

Professional installation recommended. MJ Modifications offers fitting at our Warwickshire workshop. Request a quote at info@mjmodifications.co.uk.

Compatibility Check

We will verify fitment prior to dispatch. Please provide your UK registration or the last 7 digits of your VIN at checkout so we can confirm suitability for your vehicle.

Why Choose 3D Design for Your M4

• Japanese-made carbon aero from a renowned BMW specialist
• Lightweight CFRP with repeatable, precise fit across the G82 platform
• Premium styling that enhances the lines of the M4 without looking overdone

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Photos

Manufactured by 3D Design