Upgrade the side profile of your BMW M3 with premium carbon fibre rocker extensions
Give your G-series M3 a sharper, more purposeful stance with our M Performance inspired carbon fibre rocker extensions. Crafted from high-quality pre-preg carbon fibre, these full replacement sill pieces deliver a factory-style fit and a motorsport look with genuine weight saving and superb rigidity.
Why enthusiasts choose this set
- Pre-preg carbon fibre construction for strength and lightness
- Clean, high-end weave for a premium finish that complements OEM carbon
- Vehicle-specific design for precise alignment and a tight fit
- Transforms the side profile with an aggressive, track-led aesthetic
Fitment
- BMW M3 G80 Saloon, 2021 onwards
- BMW M3 G81 Touring, 2021 onwards
We run these on our own builds and customer cars, and feedback has been consistently excellent on fit, finish and the way they elevate the overall look. As a full replacement design, these are made to take the place of the factory rocker covers for an OEM-plus result.
Installation
Professional fitting recommended. For installation by specialists, contact MJ Modifications in Warwickshire and request a quote: info@mjmodifications.co.uk.
Perfect for
Owners seeking a subtle yet impactful exterior styling upgrade, a cohesive M Performance look, and high-spec materials that match the calibre of the G80 and G81 platforms.
What’s included: Pair of carbon fibre rocker extensions for left and right sides.
Search-friendly terms
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