3DDesign Carbon Fibre/Carbon Fiber Side Skirts, Side Skirt Extensions & Side Splitters for BMW Z4 G29 (2019+) M40i & M Sport – Carbon Side Blades, Sill/Rocker Panel Extensions – OEM+ Aero Body Kit Upgrade

Elevate your G29 Z4 with premium carbon side extensions

Transform the profile of your roadster with these precision 3DDesign carbon side blades, engineered for the G29 chassis. This pair of lightweight composite rocker panel extensions delivers a sharper, lower stance and a true motorsport-inspired look for M40i and M Sport variants from 2019 onwards. Expect a clean OEM+ finish, excellent alignment and a high-end upgrade that enhances presence without compromising daily usability.

If you are searching for Z4 G29 side skirt extensions, carbon sill extensions, side splitters, rocker covers, carbon side skirts for BMW roadster, M40i styling upgrade, M Sport aero kit pieces or a body kit addition that looks factory yet aggressive, this is the go-to choice. Designed by 3DDesign for a precise fit and a seamless integration with the factory lines.

Why enthusiasts choose this upgrade

• Authentic carbon construction for a premium appearance and reduced weight
• OEM+ styling that flows with G29 bodywork for a purposeful, lower visual profile
• Direct upgrade for both Z4 M40i and Z4 M Sport models
• Refined craftsmanship from 3DDesign for dependable fitment and finish
• Ideal pairing with front splitter and rear diffuser for a complete aero package

What you get

• 1 x Pair of 3DDesign carbon side skirt extensions for G29 Z4
• 1 x Fitting hardware set

Compatibility

• BMW Z4 G29 M40i, model year 2019 onwards
• BMW Z4 G29 M Sport, model year 2019 onwards

Real-world results

We have installed these at our Warwickshire workshop and the feedback has been consistently positive. Customers love the factory-level fit, the tight panel gaps and the instant boost in road presence. It is an effortless way to add performance styling to the Z4 without being over the top.

Professional fitting available

For the best outcome we recommend professional installation. Book your fitment with MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.

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